Happy Holidays!

Just wanted to wish you all the happiest of holidays and enjoy your week off!

Holiday break!

We made it! We're about halfway to the AP exam...Wednesday May 16th!

Please make sure to complete your Ch. 14 Reading Questions (this can be found under the Powerpoints and Assignments) for our return on Tuesday, 1/3. NO LATE PAPERS WILL BE ACCEPTED!

Feel free to email with any questions.

If for some reason you did not turn in your take home test you must email it to be before tomorrow (Friday) or you will lose lost 5 points for each day it's late.

I hope everyone enjoys break and I look forward to getting into probability when we're back!

Dear AP Statistics Students,

Happy Holidays! First and foremost, thank you G period for the card! That truly made my day yesterday (sorry I have to give you a test today instead of returning the favor). To those of you who have given me snowflakes or cards or gifts or delicious snacks, I send another heartfelt thank you. And a special thank you to my H period crew who has spent every day this year on the statistics grind during study hall.

Butttt….that’s not really why I’m writing ya’ll (yeah, I just did that) this letter; I’d like to take this opportunity to thank everyone for your hard work thus far. I know I’ve been extra tough on you, especially with the plethora of days we’ve missed, but I hope you all know it’s only because I think you can do better. We can all do better. To the students who have come after school or during lunch or before classes begin, I appreciate your hard work. To those who always come to class prepared with homework completed, you are not overlooked and I thank you. And to those of you who have struggled or have not done your best so far, step your game up! No more incomplete assignments!

You are all intelligent young people and a joy to be around. It is because of you that I love coming to school each day and miss it on our days off. Thank you for making each class fun, but at the same time, productive. If we keep this pace up through the AP exam we’re going to have our best year of scores at EHHS.

I wish you all the happiest of holidays. Let’s all (including me) challenge ourselves to continue to improve over the remainder of the year.

Of course I have to remind you to start off right after break; come with a 20/20 on your reading questions (which will count as a quiz grade)—don’t procrastinate! And as always, check the blog and/or email me with any questions.

Again, thank you all for a great start. I love you guys!

Sincerely,
Fred Carofano

Thank you for the card! And snowflakes! And gifts!

To those of you who signed my card (period G), thank you all so much! You truly made my day with that! I hope that you know, despite my snyde comments sometimes, that I equally appreciate all of you and your hard work. Thank you to those who gave me snowflakes and gifts and such...really, it means so much!

Now I have to sound like a grinch...

Your TAKE HOME TEST IS DUE TOMORROW! No exceptions!

As you enter you will start your multiple choice exam. There are 25 questions; however, you will be graded based only on 22; that gives you three extra questions to earn points and boost your grade! So come early and get started.

In regard to break work--you will have to read chapter 14. You will not have a reading quiz; instead, tomorrow I will post 15 questions on the blog that you will have to answer (a lil' guided reading question action).

Study hard tonight! Hope to see many of you after school later!

Monnnnnnday HW

Tonight it's back to the grind on that take home test DUE THURSDAY!

If you haven't yet, tomorrow is the last day to hand in your Saturday permission slip (and I need it regardless of your attendance!)

All of those at the English exam today--hope it went well! Tomorrow we'll get back to work in Stat; you do not need to make up any work from today, just keep working on that take home test.

And just so you know...the test is posted electronically under "Powerpoints and Assignments!"

Sorry for the late post...

I apologize for the late post, I just got home from my first visit to see my niece in Syracuse!

I've uploaded your take home exam (DUE THURSDAY) under our Powerpoints and Assignments link. Look for the document *Methods of Data Collection: Take Home Exam.*

Also, please remember your Saturday Session permissions slip is due tomorrow, regardless if you're coming or not. If you say you'll attend it's of the utmost importance that you actually do.

Tomorrow and Tuesday we'll work more on experimental design. Wednesday we'll introduce a lil' probability. For those of you in the English mock exam, good luck--try your best, try to give yourself a good gauge of the challenges ahead to prepare for May. Those of you in G period, head to your Psychology class and think about connections to Statistics as you're there.

Four more days 'til the holiday break! Be ready to put in some hard work!

Thursday HW

Please complete the final set of problems from your textbook for chapter 13 (regarding observational studies):

Page 313:
20, 30, 31, 37 ANNNNND....number 5 and 6 on our blocking activity from class.

Also, your Saturday permission slip is DUE MONDAY. I'd recommend you get it in tomorrow so you don't have to worry about it over the weekend!

One more thing...we have our multiple choice test on data collection next Thursday; the sooner you start studying, the better, so I'd review my notes and maybe even do a few problems from the Part III review in your text!

Wednesday HW

THERE WILL NOT BE A QUIZ ON BIAS TOMORROW. INSTEAD, YOU WILL HAVE 8 MC QUESTIONS REGARDING EXPERIMENTS.

Tonight please complete the following:

page 314: 34,36,38,39


Also, your Saturday Session permission slip is DUE MONDAY! Don't forget!


Below you can see an experimental design we wrote in period E...pretty good stuff...

Tuesday HW

We will have an after school review on THURSDAY to discuss methods of data collection--simulations, surveys, and experiments. We will have a TEST NEXT THURSDAY.

Here is your homework for tonight:

Page 313: 19, 28, 33, 35, 43

Here's what I'm expecting for an experimental design (number 28):

Monday HW!

Please complete the following four book problems tonight:

page 313: 10,13,24,25

Weekend HW!

The holiday break is getting closer with each day! Tomorrow we'll get into chapter 13 some more as we aim to finish this unit by the break (at the latest).

Over the weekend please complete the following:

page 313: 1, 14, 23, 27

Also, remember your TEST CORRECTIONS ARE DUE MONDAY!

I've uploaded the chapter 13 powerpoint under our "powerpoints and assignments" if you're interested.

Thursday HW!

STUDY! You have your vocab test tomorrow! You need an A! Get focused!

Also, the crossword puzzle (extra credit) is DUE TOMORROW.

And test corrections are DUE MONDAY.

Wednesday HW

Please complete both "number 2's" on the AP problem sheet provided in class.

Tomorrow you'll have about 10-15 minutes to finish your multiple choice; if you're worried about time take a look at some of those this evening.

See you manana!

Tuesday HW

Please complete the following problems in your textbook:

Page 289: 9,18,19,21,28

*No evens, no credit!*

Tomorrow we'll talk about any homework concernes and do a bunch of practice (in groups) in class before moving on to experimental design on Thursday/Friday.

No homework tonight! (Good time to get ahead...)

There is no homework due tomorrow, but you have plenty of things lingering to consider.

• Test corrections are due Friday. I'll be after school each day this week for help.


• Vocab Test is Friday. The list is on the right of the blog.


• Crossword puzzle due Friday.

Tomorrow in class we'll finish up our notes with bias(es), and then Wednesday we'll look at some AP problems for practice.

Weekend HW

Please complete the Chapter 12 Quiz A/C worksheet provided in class. I know we haven't formally named all of these sample types and biases in class, but you should use your notes (from reading the chapter) to help you figure this out. We'll allude to this homework as we push to finish up chapter 12 by Wednesday.

(Our goal is to test on this unit by Christmas break).

Also, the crossword puzzle is an extra credit homework assignment.

We also have a quiz Monday on linear regression. Be sure you can:
1. Interpret slope
2. Interpret y-intercept
3. Interpret the coefficient of determination (R^2)
4. Find correlation given R^2.
5. Calculate a residual (first generate a predicted value with the equation, then find a residual)>

Finally, you all should be working on corrections to make up your test. I will be after school Monday for those who need help with some of the problems.

Enjoy the weekend and I look forward to seeing you all Monday!

Thursday HW

Almost made it through the whole week!

Please complete teh following: page 289: 5, 7, 8

Wednesday Homework: Yay sampling!

Please complete the following problems in your textbook:

Page 289
1, 2, 17, 26

Tuesday HW

One last shot at simulations...

Please complete the following...

Page 266: 1,5,6,33,35...........................37,38

To Make Up The Test...
1. For each incorrect response, identify why your answer is incorrect; what mistake did you make?
2. Then, explain why the correct answer is correct (in detail!)

*All complete sentences
*All in context (no A,B,C,D...)
*If you do this successfully you earn a "check" and then are allowed to re-take the test after school, during lunch, or during study hall.

Monday HW

Tonight please complete the 2 simulation problems--Chapter 11 Quiz B and the AP problem from the 1998 exam.

We'll discuss both of these in class tomorrow; then we'll move onto some discussion of our multiple choice test! Yay!

Answer to your homework?

Tuesday HW

Yeah, that's right. I did it. Homework the night before pep rally.

(It's short).

Write a procedure to simulate this scenario. Then, conduct 5 trials and record/interpret your results.
57 students participated in a lottery for a particularly desirable dorm room—a triple with a fireplace and private bath in the tower. Twenty of the participants were members of the same varsity team. When all three winners were members of the team, the other students cried foul. Use a simulation to determine whether an all-team outcome could reasonably be expected to happen if everyone had a fair shot at the room.

**And don't forget about your crossword puzzle. I still can't figure out 3 down; don't worry if you're missing 1 or 2 or 3. But not 4. Then worry.**

Weekend Homework

Please complete the TAKE HOME TEST for Monday!

Remember, it might be a good idea to start studying for Tuesday's MULTIPLE CHOICE TEST.

Also, I'll be after school Monday to review for Tuesday...

Have a great weekend!

Chris--I can't find the electronic document for this quiz--good thing you took one!

Thursday HW

Please complete the 1997 AP problem regarding re-expression tonight.

Also, the crossword puzzle is due Wednesday and will be graded as a homework.

Enjoy!

Wedddddnnneesssdayyy

Halfway through this full week; this whole 5 days of school thing shouldn't be so hard!

A couple updates:

• After school review for unit 2 THURSDAY
  



• Also, a unit 2 after school review MONDAY




• These will use different data to review the entire unit, so feel free to come both days if you're really struggling with bivariate data
  

Tonight's homework:

• Page 238: 1, 3, and MC

Tuesday HW

Please complete "The Wandering Point" activity provided in class, examining points as potentially influential.

These correlation and values should be provided--specific numbers! (Not just increase, decrease, etc.)

For the size of the residual, please put "small, medium, or large."

Monday HW

Back to work!

Tonight's HW:

Page 215: 7, 11, 15, 17, 25,

Another long weekend...

You have a few responsibilities this weekend...

1. STUDY! Vocab test Monday! (vocab list is on the right of the blog)

2. Complete the Outliers and Influential Points homework. If you weren't in class to grab this worksheet (or need another copy) you can find it under our powerpoints and assignments titled "Outliers, Influence, and Leverage HW."

3. If you have not done so yet, the 17 MC questions must be completed and turned in on Monday. (These were assigned before our power outage week)

It would also be a good idea to check last night's homework using the answer keys I posted under our powerpoints and assignments. Good luck!

We're baaaaack! (Lot's of updates)

First, the following updates:

1. There will be a quiz tomorrow! Make sure you know how to identify explanatory/response variables, interpret slope and y-intercept, find a regression equation given the data, describe an associatoin/correlation, and evaluate if a linear model is appropriate (residual plot, quantitative variables, outlliers).




2. There will be an after school review tomorrow for extra credit on test 1.




3. The vocab test will be Monday, 11/14.




4. Stamps are due Tuesday 11/15. These must be stapled and counted, with the total written on the front. If I recount and your total is not exact I will throw away all stamps.

Homework tonight....study for your quiz and the Bivariate Data Summary worksheet. (I've posted the answers under powerpoints and assignments so you can be ready for the quiz!)

The 17 MC previously assigned are due by Monday (if you have it done, please give it to me earlier so I can get it graded!)

I've also posted our most current powerpoint, the Bivariate Data Summary worksheet, and the Regression Topics to Know under our powerpoints and assignments.

Back to work!

Halloween HW!

Well, almost Halloween...

Period E/G: Please complete the 17 multiple choice questions provided in class; this will be collected and graded.

Period B: Please come Monday with the 17 MC, 2002, and 1998 AP problems completed. The multiple choice will be collected and graded.

Extra Credit Question:
5% of data lies below 450 and 40% of data lies above 1,085. Calculate the mean and standard deviation.

Thursday HW

Alright, so different homework for different periods.

*The Unit 2 (Bivariate Data) vocab list is posted to the right*

Period B: Please complete the 17 multiple choice questions FOR MONDAY. I will not be giving you a quiz tomorrow; instead, I will give you the 1998 AP problem (that would've been your quiz) for weekend homework.

In sum, the 17 MC and 2 AP problems (1998 and 2002) will ALL BE DUE MONDAY. Don't save it all for the weekend! Get something done tonight!

Period E/G: Please complete the following three items for homework:
1. 1998 AP problem
2. 2002 AP problem
3. Matching LSRL to scatterplots (on the back of the 2002 AP problem).

**I've posted the 1998 problem under our powerpoints and assignments**

Updates, updates, updates...(and homework of course)

Tonight's homework:

Page 189: 14, 21, 22, 35 (*skip B, we didn't discuss R^2 yet*), 27d-g

Otherwise, we'll have our first extra credit review session (for the unit 1 test) this Thursday. We'll have a second next week for those who can't make Thursday--vote on the poll if you want a say in which day!

Tomorrow it's back to the grind with this linear regression...and yes, I'll be checking your homework, so do it! End the quarter strong and bring that grade up!

Tuesday HW

Please complete the following for homework:

page 189: 1,3,4,5,13,15a, 16a

For number one you need the slope formula (check your book if you don't have the formula from today's class!)

See you manana!

Monnnnday HW

Ok, back to real life. No more power outages. I probably just jinxed it.

Tonight, please complete the chapter 7 multiple choice test tonight (provided in class). Also, remember that you have a chapter 7 quick quiz tomorrow to start class (periods E and G)! So study!

If you'd like, your extra credit crossword puzzle is due tomorrow as well! So it's a busy night if you took the weekend off!

Ch. 7 HW

Here's your homework from chapter 7 for the next few days...

Tuesday: page 160: 1, 3, 5, 6, 7, 11

Wednesday: page 160: 9, 12, 13, 15, 23

Thursday: page 164: 18, 19, 25, 26, 29, 30

Monday HW: STUDY!

Time to wrap up our thinking with the first unit (for now). We'll bring all this stuff back into the picture when we start our second semester in January, as we move into statistical inference and tie all of our content together.

For now, study up! You know you have your open-ended exam tomorrow. In addition, your take home multiple choice test is due tomorrow; NO EXCEPTIONS. (Number 39, "As lab partners, Sally and Betty... has not yet been addressed in class. Please omit this question.)

Also, the extra credit review questions I provided last week are due tomorrow for some additional test points yet. (I'm thinking a maximum of 5, but I have to look at the grades first and examine the distribution :) ).

So, study tonight. Get together with another stats peep and work through some examples; learning is a social experience. The more you bounce ideas back and forth, teach one another, and discuss difficult concepts, the more prepared you'll be.

And then it's on to unit 2, full force, on Wednesday! Yessss!

MC Test Posted: AND DUE TUESDAY!

Just posted a pdf file for the take home MC test; you can find it under the "Powerpoints and Assignments" titled "Unit 1 MC Test."

Enjoy the beautiful weather today; do some stat problems outside!

Your MC test is due TUESDAY!

Back to regular school....yay for weekend take home tests!

Alright, ya'll. Back to reality.

Your take home multiple choice test is due Monday. Please don't forget this, as it will destroy your grade to have a 0 on a test!

We have an after school review sesssion on Monday to prepare for Tuesday's exam.

Monday in class we will begin notes on chapter 7! Woop!

Have a great weekend, and good luck on this take home exam--make sure you read carefully and consider ALL possibilities for each question (don't just read answer A and decide it's correct!).

Email me with any questions!

New Uploads

I just uploaded the chapter 6 MC quiz (due Thursday) and the chapter 7 powerpoint (which we'll likely start Friday).

This way, you've got your quiz if you misplace it or want another copy, and can get ahead a bit if you look at the powerpoint. Enjoy!

Tuesday HW (Due Thurs)

Don't forget: PSAT seminar tomorrow! We'll address your questions (from today's stamp problem), work on some Unit 1 review, and maybe even work on our take home quiz.

Don't forget: chapter 6 take home quiz is DUE THURSDAY.

I'll be here after school Wednesday for any questions or to work on your Chapter 6 quiz.

We will also have a test review this Thursday.

The votes have been tallied: TEST MONDAY!

Tuesday Warm Up: What do you want to know?

To raise new questions, new possibilities, to regard old problems from a new angle, requires creative imagination and marks real advance in science.

Type 1:

What is (at least one) question that arose as you worked through the SAT investigation?

What are at least two additional questions you have about standardized values, shifting, rescaling, or any topics we've discussed thus far in AP Stat.

I will respond to all of these questions during our PSAT review session, so think: the more you want to know, the more prepared you'll be for our test!

I wish I had a 4 day weekend...but 3's alright too.

Hope you're all feeling confident today after the Vocab Test.

Alright, here comes the homework assault for this weekend--but it really shouldn't be that much, because if you used your class time productively you really should be done with the entire SAT packet, and only have the Type 2 and MC to worry about this weekend. If you didn't....well, that's your problem I suppose.

The following items are DUE TUESDAY. NO EXCEPTIONS:

1. SAT PROJECT: Complete the packet (20 questions), neatly, and in complete sentences. I've attached this document under our assignments link if you need another copy or prefer to type responses


2. SAT TYPE 2: Simply reflect on what you've learned about your college application process and your chances to get in (based solely on SAT's). I've provided some questions for you to consider; in grading this I'm just looking for thoughtful comments. I don't want you to simply regurgetate all the information you answered in the question; synthesize this, put it together. Don't go crazy, and definitely don't write more than one page. I'd expect at least 6 thoughtful comments if you want to get a 10/10.


3. 16 MC QUESTIONS: As we prepare for our Unit 1 test, please complete the 16 MC provided in class. This will be counted as a homework grade, and we'll go over the answers Tuesday. You must show some work to get credit for the HW, as I'm aware you could just write random letters (if there's no work).

**You should also review the answers to 3,4,14,15 that I provided in class as a means of studying, though this is not an official assignment.**'

So the way I see it, you spend a MAX of 1 hour on your SAT project (unless you wasted class time), and probably about 30 minutes on your MC. So if we divide that up by 4 days, that's about 23 minutes of homework a day. And I don't feel bad about that.

Enjoy your four days, rest, relax, have fun, and enjoy the beautiful weather! I'll look forward to seeing you Tuesday!

VOCAB TEST TOMORROW!

Study! This is our first official test grade in AP Stat (until next week); start off on the right foot and study this vocab!

Make sure you can also sketch shapes of distributions and name types of graphs for categorical/quantitative data.

I've uploaded your SAT lab under our Assignments link; remember, this (including the type 2) is due Tuesday.

Also for Tuesday, complete the worksheet (3,4,14,15) we looked at in class.

Good luck!

Tuesday HW Revised! Read below!

Tonight, please complete the Chapter 6 practice quiz; 3,4, 14c and 15a.

Also, I was sent a great stats link: http://www.apstatsguy.com/. Check it out for some additional resources!

Tomorrow it'll be back to the SAT lab which will be DUE THURSDAY. Remember, Thursday you have your vocab quiz.

You will be given a multiple choice take home quiz on Thursday to be collected after your 4 day weekend..then it's test time for unit 1! Woop woop!

Monday HW

Back to business, though for you it's a short 4-day week (and we have next Monday off!)

Tonight, please complete Page 125: 25, 27, 31, 41,44

Tomorrow we'll start with our SAT investigation, so if you have not done so yet, please find the average SAT scores for 3 schools. You will need this as the basis of your work; I've not yet decided on a due date for this project (this will be your largest AP Problem/Project grade thus far), but I'm thinking Monday so that people can come to our review after school Thursday with questions. We'll worry about that in a couple days.

For now, please complete the assignment above as we push toward the close of chapter 6--and you know what that means! Test!

VOCAB TEST THURSDAY!

Weekend HW

I'm soooooooo pumped about chapter 6!

Here's the weekend homework: first off, please complete the worksheet provided in class (all of it). This means the rest of number 2, and don't forget to go back to #1. For 2, letter i, you need to think--draw a picture to help yourself out! If you need more, check out your textbook.

Second, please find the average SAT score for 3 colleges you're interested in applying to. If you're younger and haven't considered this yet, start now. If you don't plan to go to college you still need to find average scores for 3 schools.

We'll use this as the basis as some of our work next week, so it's important! This research will count as a homework assignment!

Extra Credit:
Today we looked at the populations of the U.S. and China, and then found the number of geniuses in each country. Here's a challenge: find the IQ score that would cut off a percentage of the Chinese population greater than the entire U.S. pop.

Let me try to clarify: today we anticipated that China had about 5 milllion geniuses, based on the .38% of people above an IQ of 40. Of course if we want this number (5 million to increase), we need the percentage to increase--so find me the IQ score that cuts off a high enough percent of the Chinese population that it's greater than the entire U.S. pop.

(Sorry, that's really hard to try to write up).

I'm back! Yay!

It felt good to be back in Stats world. I think I actually missed you all quite a bit.

Tonight, please complete page 124: 15 - 23 (odd).

Tomorrow we'll go through any questions you may have, and keep pushing forward with this z-score stuff.

HW Tonight/Sub Tomorrow

Back to the grind...

Tonight, please complete page 123, 1-11 (odd). Of course I won't be here to check this tomorrow, but I will check Wednesday. It's up to you if you do it tonight or hold off--but you will have some multiple choice to do tomorow night as well.

Tomorrow, please use the 2000 AP problem data to do the following:

1. Draw 2 comparative histograms--so use the same scale on 2 separate axes--for flexibility ratings of young-adult and middle-aged men.

2. Compare the flexibility ratings of young adult and middle aged men.

Once you've graphed this and written your conclusions (talk about SOCS, and don't forget the context--who's more flexible?), you should start the 13 MC questions.

Hope you all have a good day! I'll miss you and chapter 6! Back to work on Wednesday!

Weekend HW

Hope you're all feeling confident after today's quiz! Your homework this weekend is to read chapter 6, and be prepared for a reading quiz on Monday. As always, you can take notes if you like, and any notes can be used on the quiz.

For those of you who prefer to do "math problems," I think you'll like this chapter. I know I'm excited for it! And then, before you know it, we'll be wrapping up our first unit and moving on to bivariate data! Woohoo!

If you're worried about today's quiz here's an opportunity for some extra credit--4 points--

Find a current news story/article that is based on quantitative data and bring it to class. If you bring a data set, please do not bring one with a sample size above 50. Ideally it should address the mean and standard deviation in the study.

Wednesday HW

Please complete the following problems:

Page 90: 10, 14, 34, 35, 42

Remember, we have our chapter 5 quiz on Friday. Tomorrow I will address any and all homework questions during our shortened period; if any time remains, we will start chapter 6.

This weekend your homework will be to read chapter 6 (and take notes if you like); there will likely be a reading quiz on Monday.

Those of you at the Big E--first off, I hope you had fun! I know you're back a little later tonight, so you can all give me the assignment above on Friday (but no later!). Also, you need not complete the odds due today, as you should be doing the comparing boxplots activity/matching instead.

I'll be posting later with some model explanations in comparing boxplots; these are incredibly important for our quiz, so check back!

I'm back (it's 6 hours later, I swear, just edited this post). I've put our word document with each class' written response to compare boxplot in the "Powerpoints and Assignments" link. Check it out!

Monday HW

Today the onslaught of quizzes began...

Tonight, please complete page 90: 9, 12, 13, 17, 19

Here's a few announcements for the days to come:

Tomorrow's HW-->page 90: 15, 21, 23, 25, 27

We will have a quiz Friday on chapter 5. To prepare, we will have an after school review for this quiz as our second focused tutoring session on Wednesday after school (half day Thurs).

New students--I would like to meet Wednesday after school with each of you to cover any missed content/questions and get you up to speed. Please let me know when you're availabe so we can figure out a day we all have available.

Hope you all had/have a good Monday--back to the grind!

Weekend HW

Your only homework this weekend is to complete the chapter 3 take home quiz distributed this past Monday. For those of you already done, rest up, relax, and come back ready to get those minds working for another 5 days.

I've posted the take home quiz under our Powerpoints and Assignments in case you need another copy. You can find it titled, "Ch. 3 Take Home Quiz" (creative, huh?). If you don't have it Monday, you will earn a 0, no questions asked.

Although I am usually willing to answer any questions at any time via email, I may be less willing for this assignment (especially if you email me Sunday night). I gave you a full week to work on this so that you could look at it and use the time to get help.

Have a nice weekend everyone!

Thursday HW

Please complete the following 5 problems:

Page 90: 3,5,7,11,26

*You do not have to do any problems by hand. You can use a calculator for each.*

Also, remember your chapter 3 take home quiz is due Monday! There is no other weekend homework--just come back ready to work! (The onslaught of quizzes is coming....)

Someone asked for this via email, so check it out: steps for a boxplot:

Here are the stops to draw a boxplot:

1. Use your graphing calculator to find the 5 number summary (enter your data in L1, then press Stat-->Calc-->1 Var Stats)

2. Plot Q1, Median, and Q3 with a vertical line--these create the box in our boxplot.

3. Calculate the fences (these are the cutoff points for outliers) with the following formulas: Q1 - 1.5IQR and Q3 + 1.5IQR

4. Plot any outliers (values that fall outside these fences) with a dot.

5. Draw the arms (or whiskers) of your boxplot to the highest and lowest data values within the fences. **Students often mess up this step and draw the arms to the fence values--these are not part of our data, so this is incorrect**

Wednesday HW

I hate to say it, but I just realized that I don't have your problems at my home computer, so I don't have the chapter 4 problems due tomorrow. I hope you wrote them down in class. If someone sees this and could post a comment with the problems that'd be amazing. Maybe even a stamp for you tomorrow. Or, email me (fred.carofano@gmail.com) and I'll throw the problems up.

I know you have to do 4, 21, 22, and 35,

I'm really sorry guys. Check with a friend if you don't see a comment below.

Remember, your take home quiz is due on Monday. Tomorrow you're welcome to come work cooperatively after school and I can do some similar examples (but not the quiz questions) to help out. The more the merrier.

Hasta manana. Buenos tardes.

Monday Night HW

Here's Monday's homework...enjoy! (Def checking this one...)

Chapter 4 Exercises (page 64) 3, 9, 11, 19, 31

Friday!

Hope you're all ready to enjoy your weekend and get back to our first full week of school!

Hopefully you're feeling more clear after the day's discussion of independence. Remember, this will in fact be on your chapter 3 quiz Tuesday, so it might be a good idea to look at another example this weekend; that way, if you have questions, you can come after school Monday to have them clarified.

Your homework this weekend is to read chapter 4. Remember, you can take notes if you like, and if so, can use them on a potential reading quiz. It's our first chapter, so there's probably a good chance for one :).

Also, on Monday you will have a graphing calculator quiz--5/5 if you have one on your desk, 0/5 if you don't. No excuses. If you have an extenuating circumstance you should approach me before then in private (fred.carofano@gmail.com).

Enjoy the weekend! Watch some football. And keep an eye out for interesting stats we can use in class.

Here's an example for a nice answer when writing independence: Class and survival on the Titanic are not independent. Overall, approximately 32% of passengers on the Titanic survived. However, 62.46% of people in first class survived and 41.4% of second class passengers survived, showing both had a higher rate of survival. Both third class and crew had a much lower rate than the overall (the expected) rate of survival. According the data, the higher your class, the more likely you were to survive.

Thursday HW

Please complete:

Page 36 (Chapter 3): 19, 26, 33

**Period B** Notice I removed problem 39.

Wed. HW

Almost done with chapter 3....I cannot wait to start playing around with more numbers! We get a little taste tonight, with your Titanic homework. I've attached the activity under powerpoints and assignments if you lost yours.

Tonight please complete the Titanic/Independence activity. Make sure you do a thorough job. Think. Be creative. Use numbers, graphs, percents...tomorrow we'll base all of our discussion around these responses.

Tomorrow night we'll have some homework specifically about independence; this weekend I will most likely ask you to read chapter 4, and we'll have a quiz on chapter 3 next week (Mon or Tues).

Tuesday HW

Good work today! Well, B period at least. Other classes haven't happened yet.

Your homework tonight is page 39: 19, 23, 27, 37.

Tomorrow in class I'll check both this problem set as well as the weekend's (see below), and so you'll have a double homework grade (4 points rather than two)--so make sure it's done! We'll discuss any questions/comments/concerns and move onto Independence to wrap up chapter 3.

If you come across unfamiliar vocabulary in tonight's homework, I expect you to flip back through the chapter to find out what's being asked--I see this coming up with marginal and conditional distributions.

Enjoy!

Labor Day Weekend!

It was nice to get into some Stats today; I'm looking forward to playing with numbers and graphs and such quite a bit more as we move through next week.

Today we got into chapter 3 a little bit; if you'd like to review or get a little ahead, you can find the powerpoint under "Powerpoints and Assignments." On Tuesday we'll finish this up, and Wed we'll start working with independence.

Homework: problems 5,7,9,10,11,12 from chapter 3 on the handout provided in class.

Also, remember you have a QUIZ TUESDAY--probably only about 10 minutes, and similar to the discussion questions you did for homework. You will also be asked to identify quantitative or categorical variables. The answer key to your homework questions can be found in the same place as the chapter 3 powerpoint.

Other than that, enjoy your weekend! Once we come back it's the real grind...

First Day Homework

Tonight your task is as follows:

Read the "Cell Phone" and "SAT" articles and answer the 11 questions about each. Provide your best thoughts for each answer; if you are unsure about a question, do your best.

I'm working on uploading the articles and questions electronically, but the site is giving me problems at the moment...it'll be there...

Will School Ever Start?

I hope you are all enjoying your extended summer vacation. Although it's nice for now, unfortunately our AP exam is in the beginning of May regardless--so we're just losing days to prepare for the test! Don't worry, we'll be fine, but we will have to hit the ground running as soon as we get into the classroom.

I'm typing up some discussion questions for day one as we speak. After some general ideas and practice to get us thinking statistically, we'll hope right into our text chapters and begin pushing through unit one. You can expect homework on the first day, and then a couple of days of notes followed by a quiz.

I can't wait to meet all of you and get to work! Thank you everyone who emailed me so I can have a compiled list--if you haven't, please do so (fred.carofano@gmail.com). I'm sorry I didn't respond to each email, I just wanted to get the address and it got monotonous writing the same response over and over.

For now, enjoy your waning (maybe?) days of summer, and I'll look forward to seeing you all on Thursday. Or Friday. or Tuesday. Sometime.

Summer Assignment: Using the Blog to Prepare for AP Stat

First off, thank you to those of you who have already emailed me! This is my first year having a class log for emails, and I think it should make the world of last-minute updates and information much easier!

One student asked the following: How should I use the blog to prepare for the first week? We'll be hopping right into our classwork on the first day, and you can anticipate having a quiz within the first few days of school. If you can use this blog to get ahead, you'll only be helping yourself. The course moves quickly; the more familiar you are with our goals and uses for Statistics, the better you will understand each topic.

Here are some tips to use the blog to prepare for AP Stat:

1. To start, look at what interests you the most. Read through some news stories (from any site), check out stats.org, pay attention to the news--just try to get a general idea of what Statistics is all about. This course is totally different than the math courses you've experienced thus far and we'll all be starting from scratch.
2. Listen to the "Stat Raps" (found under AP Statistics in the Classroom Powerpoints link, toward the bottom). Pay attention to the vocabulary used. It might even be a good idea to look at the lyrics and see what words you do and don't recognize, and even use the context of the song to figure out some of the meanings. We will frequently have vocabulary tests next year.
3. Check out ted.org and simply search "Statistics." Watch some of these videos--they're pretty interesting!
4. Specific to the course, you should take a look at the first few chapters of powerpoint slides to get an idea of what we'll be covering. Take this as far as you like--all of the notes (although they will be revised) are there for you to peek at.
5. Look at the different topics for the midterm exam to get an idea of what topics we will cover (Classroom Powerpoints link).
6. Look at the "Stat Tutorials" link to get an overview of any topic; focus on those we'll cover earlier in the year.
7. Use the "Using Your Graphing Calculator Link." We CONSTANTLY use our calculators; the more familiar you are with its use, the easier your life will be. You might want to make sure you know how to enter data in L1,L2, create different graphs (scatterplots, boxplots, and histograms) with your calculator, and calculate "1 Variable Statistics." We'll cover this in class, but you're better off being familiar with the calculator.
8. Look at some of the online practice exams to get a feel for the types of questions and the complexity of AP questions. Try some out--maybe you know more than you think!

If you were to do all of this you'll be way ahead of the game. We've still got a month to go, so you have plenty of time!

I'm currently taking class at UConn--and I have plenty of projects, reading, and homework to do--so I totally understand the burden of summer homework. But I also know you have ample time, so get on it!

I can't wait to meet you all and get started in August!

(Feel free to email me with any questions! fred.carofano@gmail.com)

Summer Assignment

There will be no formal AP Statistics summer assignment. However, you are expected to do the following:

1. Stay up to date on the blog! I will periodically post information over the summer so be sure to check in.

2. Be ready for day one! We'll get to work as soon as the school year begins, so be ready for homework and AP Stats as soon as you walk into this room! Take this summer to rejuvenate!

3. Explore the blog! Check out what resources this has to offer, maybe even get yourself ahead with some early studying. We'll have a quiz within the first few days of school.

4. MAKE SURE YOU HAVE A GRAPHING CALCULATOR! And further, make sure you know how to use it!

Feel free to email me if you'd like to get ahead and need some direction as to what you should practice/research!

I hope you all enjoy your summer and I look forward to next year! Email me any time with questions! (fred.carofano@gmail.com)

Check out some projects!

New students next year...

My class just finished up with their final presentations; I've included a link to a few of these for you to check out! Take a look at the data, what was done, etc.--this is what we'll be working toward all year! (There is also a chance I base the summer project off of these)...

Summer project will be up Monday/Tuesday, so check back!

http://apstatisticsproject.net16.net/

http://prezi.com/1ck1v-xps_mg/ap-statistics/

http://www.youtube.com/watch?v=nrTzcRXDxfg

2011 - 2012 Summer Assignment

Hello all! I can't believe it's already time to start thinking about next year! I plan on getting a summer assignment posted up here by next Monday, June 21st--be sure to check back sometime after Monday to find out your summer responsibilities.

For now, it'd be a good idea to familiarize yourself with this blog--its layout, and its contents. Scope out what it has to offer; next year it should be one of your primary tools for AP Stat.

Letter to Next Year's Students

DUE FRIDAY!

Please write a ONE PAGE DOUBLE SPACED letter to next year's AP Statistics students--a sort of "survival guide" for success in the course. This will be read by both myself and next year's students, so be sure to keep it APPROPRIATE. Any letter deemed inappropriate will be given a 0.

Content wise, you can really pick and choose. Consider ways to study, difficult topics. tips for the AP exam, comments on the course/content/teacher--whatever you think a student will need to know to do well in this course.

This will be collected on Friday and should be typed.

PROJECTS!!!

So...no homework, but remember that the countdown to your project is on...we currently have 11 more class periods until exams!

Tomorrow in class (half day) we'll take our 21 quiz; then, we'll arrange our seats so that you're sitting with your project group (or individually). On Friday we'll be in the computer lab for research/typing up projects/working on powerpoints, and Tuesday you will have class time to work on your project as well (no cpu lab though).

*I have no problem giving you time in class to get the project done; however, if you do not use this time accordingly, we will look at some other topics in class and your project will be done entirely on your own. Be productive. More productive = more class time.*

DISCUSSION QUESTIONS DUE MONDAY!

Your discussion questions regarding the case United States vs. Kristen Gilbert will be due on Monday, May 23rd.

Hopefully you check the blog and notice this!

Enjoy the weekend!

Fighting Crime With Statistics

Fighting Crime with Statistics 101

This assignment is scored out of 60points. You may do as many parts of as many questions as you like in order to earn these 60 points. Your answer should be typed. The question must be written above the response. This assignment is to be handed in on Thursday, May 4. These are short essay questions. Your answers should be well written, complete, and in detail. Not only should you reference content from the article, but also your own statistical insight and
vocabulary.

1.) In detail, explain the difference between statistics and Statistics, and discuss the origin of each. Additionally, provide at three specific examples of each, referencing our studies this year. (14 points)

2.) The graph on page 16 is a simple type, one you have used many years prior to this course—what type is it? Does it display categorical or quantitative variables? Explain what this graph shows in relation to United States v. Kristen Gilbert. (8 points)

3.) On page 17, the author uses tossing a coin to explain hypothesis testing, and references the calculation that tossing 6 heads out of 10 flips is .38. Is this a binomial or geometric probability? Show how we could calculate this by hand or using the graphing calculator. (6 points)

4.) On page 18, the author outlines the statistical process used to analyze the data. What type of data is presented in the table above, categorical or quantitative? How many variables are there and what are they? Name the graphical display used, as well as the name of the test used to conduct the analysis. Finally, what are/name each of these statistics: “40 out of 74, .045, 11.6, <1 in 1 million? (12 points)

5.) Cobb argued that these statistics did not prove Gilbert committed any murders; he references an example comparing mortality rates among smokers/nonsmokers. Explain why we cannot establish cause, and only can show correlation; support your argument with a detailed example from the text, and use appropriate statistical vocabulary. (8 points)

6.) Diagram the experiment outlined on page 20, providing the following details: explain why we randomize and suggest one method of randomization that could be used, explain the meaning of double-blind, and explain treatment vs. placebo. Finally, explain the statistical advantages of experimental data vs. observational data. (14 points)

7.) Discuss the role statistics played in this case. Provide background information about the case, its participants, and how statistics were used, as well as its conclusion. Finally, reflect on United States v. Kristen Gilbert. You only saw the statistical evidence—are you convinced Gilbert was guilty? Why or why not? Elaborate! (10 points)

8.)On page 18 the author provides a table with numbers of deaths in regard to Gilbert's presence. Which type of significance test would be appropriate for this data? State the name of the test, the appopriate hypotheses, and check the conditions. Then, show the mathematics (with correct test statistic, picture, and p-value), and write your own conclusion based on this information. (14 points)

9.) The intro to the "Policing the Police" article outlines the idea behind Simpson's Paradox. In your own words, define Simpson's Paradox, and provide a detailed summary of the explanation provided in the article. (6 points)

Thursday HW

Tonight complete the 1997 #4 and 2002 #5 Free Response questions on the sheet of 6 provided in class.

Tuesday HW

We'll treat tonight as a "catch up" day as we push toward the exam. I need ALL of the following from you by tomorrow:

1. "Stat Rap" Assignment


2. Graded 2010 AP FR Exam (to grade this you will also need to complete 2010 #6 from this weekend if you have yet to)


3. Monday's in-class multiple choice (if you were absent)

AP CALC STUDENTS--WE'LL WORRY ABOUT THIS STUFF TOMORROW! STUDY FOR YOUR EXAM! (and if you also have English on Thursday, we'll figure it out...)

Monday HW

I hope all of you who took AP Psych/Chem are feeling confident!

For tonight, please complete the following:
AP Stat HW: 5/2/11
Task: Your job is to use the AP rubrics provided at apcentral.collegeboard.com (go to AP Courses and Exams, Exam Information, Statistics, 2010 Scoring Guidelines) to grade the FR we have worked on over the past week.

On a separate paper, please provide each question number with the appropriate grade (E,P, or I) for each part. Along with each grade of E,P, or I, I should see a 1-2 sentence (minimum) explanation why you received this grade. (Identify what you missed, what you did wrong, etc.).

Further, for each number you should give yourself a grade of 1-4 as outline by the rubric.

This will be checked as 18 point project grade—this will be entirely graded on your level of detail.

Also, if you haven't handed it in yet, I need your "Stat Rap" activity!

Weekend HW

Two tasks:

1. Complete your type 3 regarding the "Stat Rap."

FCA's:
1. Student underlines/highlights 15 statistics references/vocabulary words. (8 points)
2. Student EXPLAINS IN DETAIL the meaning of at least 10 statistics references--think deeper than just a vocab reference. (15 points)
3. Student neatly and clearly provides his/her response. (2 points)


2. Please complete the 2010 investigative task provided in class. (It can also be found online).

3. On Monday, you will be asked to use the internet to grade your 2010 AP exam. You should provide a grade of E,P, or I; further you need to provide 1 or 2 sentences (at least) explaining WHY you gave yourself this mark. Your paper should also include corrections/the correct solution if you did not already have it. This will be a GRADED assignment. (18 points for grading with explanation; 3 per question).

***If you have the AP PSYCH OR AP CHEM EXAM ON MONDAY YOU MAY COMPLETE THIS WORK MONDAY/TUESDAY NIGHT TO BE COLLECTED ON WEDNESDAY***

Thursday HW

Easier night tonight...

Please complete the AP problem regarding unbiased estimators on the back of the formula sheet.

Tomorrow we'll finish going over the 2010 AP exam. Next week we'll finish up all the content with chapter 27 and keep studying. Fun stuff!

Tuesday HW

Tonight please complete questions 2 and 3 from the 2010 AP Exam. Tomorrow in class we'll look pretty deeply into these first 3 questions from 2010, exploring correct solutions, grading, and common mistakes students actually made last year.

Monday HW

First day of review/crunch time! Tonight for homework complete the 2010 Free Response question (#1) regarding regression and experimental design.

Further, complete both sides of the Inference worksheet--matching situations to the appropriate tests/intervals.

See you tomorrow!

Vacation HW

Get that take home test done! This is your first opportunity as we prepare for the AP exam; do your best. I recommend you sit down, time yourself for 90 minutes, and try the exam with the same time constraints you'll have on May 11th. Of course since this is a take home test you should then go back, make corrections, and use your notes/textbook to figure out anything you left over and to check your work. As we push forward all of these activities will of course carry weight toward your grade (and the majority of your fourth quarter will be on these pre-AP exam activities), but their primary function is to prepare you for the test. You won't learn anything if you don't put your best effort forward and try to recreate the AP exam environment. I'm looking forward to getting back next Monday for our LAST 13 DAYS OF CLASS BEFORE THE EXAM! It's crunch time! It's going to be a pretty tough 3 weeks!

Tuesday HW

Only 3 more days until vacation, then it's crunch time leading up to the AP exam... These days are more important than any we've had thus far. On that note, I hope you enjoyed your day with David Bock; although it was a long time to sit and listen, this was a really valuable opportunity for us. Not too many students get to spend some time learning from a true expert in a subject. Tonight for homework please complete the 2 Free Response questions regarding Chi-Squared (Goodness of Fit) tests. Tomorrow we'll do some homogeneity and independence tests, then it's one more chapter and review. Can you believe it?!

Monday HW

Please complete the following questions regarding the Chi-Squared distribution. Page 628: 3,4,5,10

Thursday Homework

*Your skull breadth activity is now DUE MONDAY. You're welcome?* Tonight: Complete the chapter 25 quiz, both sides, conditions and all, to be checked tomorrow. Also, remember you can write some questions for our text author David Bock for some stamps.

Wednesday HW

Tonight please complete the following: Chapter 24 exercises: #29 Chapter 25 exercises: #1,3,7,13

Tuesday HW

22 Days until the AP Exam! Homework tonight: page 569: 17, 19, 21, 25 Finish these up! Tomorrow we'll move on to matched pairs; if you have any lingering questions about 2 sample t-tests I will be after school on Wednesday and Thursday.

Thursday HW

Tonight you must answer each of the questions within the slides for chapter 24. Use your resources to help you and this will be much less time consuming! This will be graded as 10 points--done, 10, not done, 0. See you manana!

Wednesday Homework!

Complete the following for tomorrow. This will be counted as a homework, but in addition, if you neatly show all of your work for each problem you can earn 3 points extra credit on tomorrow's quiz.

The quiz will be a combination of "Quiz A/B"--a T test, a T interval, and a question asking you to find sample size.

Page 543:
15, 17, 21, 23, 25, 35

(it’s a long one.)

Tuesday HW

Complete the Chapter 23 Quiz A/B worksheet IN IT'S ENTIRITY for tomorrow. Also, your 5 MC questions are due tomorrow--TEST GRADE!

Monday HW

Tonight you should complete the following problems in your textbook: Page 541: 1,3 (use your textbook to figure these out!), 5, 9, 11 Your MC TEST IS DUE WEDNESDAY! AND DON'T FORGET: SSS SHEETS ARE DUE TOMORROW!

Take Home MC Questions Due Tomorrow!

Hopefully you thought the test today went well...don't forget to get your take home MC questions completed as well, due tomorrow. Period B--since you have the assembly during our class period, please make sure you drop these off at some point.

See you all manana!

STUDY!

Here are some questions I selected to review for tomorrow's test:

Tuesday HW

Tonight you need to identify 10 mistakes TOTAL--use the key I gave you in class to identify 10 things from both the last homework question and the question we did in class.

BE DETAILED! THE MORE YOU WRITE, THE MORE LIKELY YOU ARE TO GET AN A!

Weekend Homework: Complete these problems--if you like, bring them to the Saturday and work on them in lunch or something!

Page 508 (HT)
11, 15, 21, 27

Tuesday HW

Tonight you must do the following:

On the untitled worksheet please thoroughly complete question 13 (Conditions, Math, Conclusion).

Also, complete number 2 on both sides of Quiz A/B Chapter 22. For these two questions you may skip the conditions--but be sure to include both the mathematics and conclusion.

Enjoy!

Tuesday HW (I'm def checking!)

Page 507 (CI)
1, 5, 8, 9, 23

TAKE HOME PORTION OF TEST DUE TOMORROW!

YOU WILL BE GIVEN 12 ADDITIONAL MINUTES TOMORROW TO START CLASS TO FINISH THE TEST. STUDY. FOCUS.

Tonight's homework is of the utmost importance! This is a huge test--so MAKE SURE YOU DO WELL TONIGHT! Work hard; use your notes, your textbook, and your peers.

Tomorrow we'll get right back into the swing of things and take some notes on chapter 22. We'll breeze through that this week, and then have another test (MC in class and FR take home on ch. 22) next week.

Thursday Homework O__o

What's poppin' future statisticians? Tonights homework is that Quiz B Chapter 21 worksheet. Also keep in mind it doesn't hurt to start studying for your test on MONDAY. Tomorrow we will go over some review and have a panel discussion. Also tomorrow is our AP Stats seminar, it will be held in the west lecture hall, so go straight there when you arrive at school. There will be other testing going on in my room in the morning so don't go there. Other than that, get a well rested night and prepare yourselves for a funtastic day tomorrow. WHOOOOOOO!!!


PS: This blog post was written by Greg Velez.

WED HW/TEST MOVED TO MON

Alright, alright, I'll cave--test is moved to Monday. I was thinking about a possible two day test since we have a lot to cover, but I'm still thinking about that. We'll use the first hour of our session to review, and I'm hoping for a little panel discussion about stats, the AP exam, and college life for the rest.

HW tonight is...

Page 492: 21, 24, 27.

See you manana!

MONDAY HW!

A lil' Type I and Type II Error practice....we'll get into a few additional ideas on Wednesday (and maybe spill over into Thursday). Remember, on Friday morning we'll have a test to begin our session! Part FR, part MC. Tomorrow in class we'll grade our vocab tests.

There will be a test review after school Thursday.

Monday HW (checked Wed):
Page 492: 11a-d, 12a-d, 13, 19a-d

In regard to your "testing for disease" homework question, here are the answers:
Type I: the patient is actually ok, but our test suggests they have cancer (false positive)
Type II: the patient does in fact have cancer, but our medical tests suggest they're ok (False negative)
Which is worse? In my opinion, a Type II Error is clearly worse, as this individual will now have a potentially fatal disease going untreated. With a Type I Error, although this person may be emotionally stressed/devastated, his/her physical health will not be threatened.

STUDY FOR THE VOCAB TEST MONDAY!

For homework you need to study the vocab list below for Monday's test. It will be 20 words (matching), and there will be 3-5 additional questions. One of these will likely be to create a table showing the correct population parameter/sample statistic symbols for categorical and quantitative data. There will also be an additional questions chosen from the following: the definition and interpretation of a p-value, the steps for a hypothesis test, the differences between hypothesis tests/confidence intervals, and the goals of hypothesis tests/confidence intervals. The vocab list is below.

Sampling Distribution
Central Limit Theorem
Standard Error
Conditions/Assumptions:
10% Condition-->independence
Randomization-->generalization
Success Failure-->large enough sample (for Normal Model)
Confidence Interval
Margin of Error
Critical Value
Null Hypothesis--what we assume to be true
Alternative Hypothesis
One vs. Two Tailed Test
PValue
One Proportion ZTest
One Proportion ZInterval
Proportion (used for categorical data)
Mean (used for quantitative data)
p vs. p hat
xbar vs. mu
Diminishing Returns
Alpha Level
Statistical Inference
Interpret CI vs. meaning of _% confidence
Sampling Variability
Population Parameter
Sample Statistic
Sample Size

In addition, you have one homework question:
If you are going to the doctor to be tested for cancer, write your null and alternative hypotheses. Then, define a Type I and Type II Error. Finally, explain which type of error is worse and why.

Thursday HW:

Page 491: 1, 7, 20a, 17a, 19ab

Reading Quiz (all 8 questions)

AP REGISTRATION PAPERWORK

Tuesday HW--YOU CAN GIVE ME THE READING QUIZ THURSDAY!

We're cruuuuiiiisin through this stuff. You guys seem to be doing quite well; keep it up, I'm incredibly happy with the way you've been working.

For homework tonight, please complete the CI/HT regarding bullying.

Also, don't forget: I need your SSS permission slips as well as the AP registration paperwork!

Chapter 21 Reading Quiz (Complete 5) DUE THURSDAY:
1. What is the power of a test?
2. What is the alpha level in terms of Type I and Type II error?
3. What is Type 1 Error?
4. What is type 2 error?
5. What is effect size?
6. How can we decrease the probability of a Type II error, and thus increase power?
7. Sketch a Normal curve. Shade in the region representing a 95% confidence interval, as well as the appropriate alpha level for a one-sided test.
8. What is the significance level? Explain what it is, do not simply provide a synonym.

Monday HW

Back to normal...sorry I was out :(

A few things

I need your SSS permission slip by Wednesday.

AP registration paperwork is due Friday.

Homework: get your quiz done for Wednesday! (if you need the questions you can find them below).

Also, complete page 470: 13,15,25. Make sure you show work! I'm checking and there'll be no credit for copying answers!

Friday's Classwork:

Here's your quiz for today. Please write your answers on separate paper and hand this in before the end of class. If everyone finishes, you may work with a partner to finish up your multiple choice or work on your reading quiz. Both of these will be collected Monday.

Confidence Intervals Quiz (Due by the end of class; NO NOTES, NO PARTNERS) (28 points)

1.) A Rutgers University study released in 2002 found that many high-school students cheat on tests. The researchers surveyed a random sample of 4500 high school students nationwide; 74% of them said they had cheated at least once.

a.) Create a 90% confidence interval for the level of cheating among high-school students. (Don’t forget the conditions!) Show all of your work. (6 points)

b.) In a complete sentence, interpret your confidence interval from part a. (3 points)

c.) A teacher surveys his students and finds that 68% of students have cheated on a test. Does this value seem reasonable? Surprising? Explain your reasoning. (3 points)

d.) Suppose we sample 2,000 students and find that 67% have cheated. Calculate the margin of error. (3 points)

e.) It had been believed that 3 out of every 4 students had cheated on a test in 2000. Does the confidence interval above suggest that this percentage has fallen? Explain. (3 points)

f.) Explain what 90% confidence means IN THIS CONTEXT. (3 points)

g.) If we want to have a margin of error of only 3% and want 98% confidence, how large of a sample must be used? (5 points)

h.) What is the probability that our confidence interval contains the true proportion of students who have cheated? (2 points)

QUIZ WILL BE TOMORROW!

I apologize for being out today; I'm rocking a pretty ridiculous fever and the stomach isn't treating me so well.

You WILL have your quiz tomorrow. It'll only be questions like those found on your Quiz A/C worksheet. Study study study! I wouldn't give this to you if I didn't think you could handle it.

As for today, hopefully you got your MC done; if you're reading this, you can hand in the chapter 20 reading quiz on Monday, leaving only the rest of your MC for homework.

I hope to see you all tomorrow, enjoy your afternoon.

Wednesday 2/23 HW

Page 469: 1,2,3,5,7,9,10

Tuesday's HW

This will be our final homework from chapter 19; tomorrow we'll really get into chapter 20, and on Thursday we will have a quiz on confidence intervals in class. I'll be after school tomorrow to review and study for the quiz if you have questions.

Please return both your SSS forms and your AP REGISTRATION paperwork this week.

Tonight (Tuesday) HW:
Page 448: 28, 29, 31, 38

Page 469: 1,2

Presidents Day Weekend

It was really a nice opportunity to see the entire AP student cohort in one room; it's rare we get to have you all together. You guys truly do incredible things for our school within these college level courses; just know that all your teachers appreciate your hard work and want to work equally hard to help you succeed. And that absolutely 100% includes me. I truly believe you can all beat this exam--so if you're up to the challenge, let me know anything I can do to help you (including spending mucho time reviewing after school/in study halls/lunch).

Anyway, off the soap box. You should complete the "Chapter 19 Quiz A/Quiz C" worksheet for Tuesday, as well as find the answers/take some notes from the grading rubric for the two AP problems you did with the sub.

Annnnnd....GET YOUR AP EXAM PAPERWORK IN! JUST BRING IT TUESDAY SO YOU DON'T HAVE TO WORRY ABOUT IT!

Thursday HW: Confidence Intervals

For homework, complete the following--and make sure you show the work for each problem, because I plan on checking this tomorrow while you are working on a 3 question multiple choice pop quiz. It'll be like number 18 we worked through on the board; you'll need to find the mean and standard deviation for a sampling distribution and then use a Normal model.

Tonight, complete the following:

Page 446: 3, 7, 11, 15, 17

Don't forget to find the answers to the two AP Problems from Monday (with the sub) and write up the correct solutions for Tuesdsay.

Wednesday HW (Sorry I slacked on the blog yesterday)...

Tonight you need to read chapter 19--and I'd recommend you take notes b/c we definitely have a reading quiz...

Tomorrow it's back to the beauty that is chapter 19 and confidence intervals. I CAN'T WAIT!

Weekend HW

Alright, alright--I'll go easy on you this weekend. But it's gametime as soon as you walk in this classroom on Monday. I can't wait--it's statistical inference time!

Your homework this weekend is to complete the 5 multiple choice questions provided in class. These will count as part of your TEST GRADE. Each will be worth 2 points--1 point for the answer, 1 point for showing your work.

SO IF YOU DON'T SHOW WORK, YOU"LL AT BEST GET A 50!

Number 16 Hint: The standard deviation in this question is difficult to find. First, you need to find the separate standard deviations for the Holiday and Dynamite mints using the binomial standard deviation formula. (square root of npq). Then, you need to use our rules for variances to get the standard deviation of these two mints together.

Thursday HW: STUDY!

EXTRA CREDIT OPPORTUNITY: This is very short notice and I apologize, but tomorrow I'll be heading to the underclassmen math classes to promote the wonderful world of AP mathematics at our school. If you remember when I came to your class, I had some letters written by current students for incoming students.

You can earn some test points for tomorrow (+5) if you write a letter to incoming students (for Stats and Calc next year), the only issue is it must be emailed to me tonight. The letter should be 1/2 to a full page (max). Simply talk about your feelings on AP Statistics--would you recommend it? Is it interesting? How's the teacher? How hard is the course and how much work is it? Is it a lot different than your previous math classes? Do you think this will better prepare you for college? What are some advantages of taking AP in general? Please be honest--don't only say good things, mention any fallbacks as well.

Calculus students--I could use some Calc letters as well, so feel free to write about Calculus rather than Stat (I'll still give you extra credit), or a combination of the two.


I've attached some questions below for you to check out--work on these and prepare yourself for tomorrow's test!

Page 384 # 35, 38, 40, 16, 18, 6
Key:
6.) b. mean = 3.44, c. mean = 17.20

16.) a. mean=2.25 b. SD=1.26

18.) b. mean=89 c. SD=260.54

38.) a. mean=37.6, SD=3.7 b. z = -2.07, prob = 0.019

40.) a. Profit = 120B+150D-200 b. mean =928, SD=187.45 d. Independence must be assumed

Page 402: #4, 7, 36, 37
Key:
4.) mean = 100, SD = 9.95; check success/fail, bernoilli trials, 10% condition; since this is nearly 10 SD above the mean the probability is essentially zero

36.) a. 0.5929 b. 0.4071 c. 0.0529 d. 0.0025

Tuesday HW!

Page 398:
21, 25, 29, 31

I need to see lots of work for credit; if you just have a bunch of answers, 0 it is.

Check out this UConn article...

Here's a link to the article written by Stephanie Summers for the UConn "Spotlight" if you're interested. Crytal--you're in the picture! Maybe you'll be famous!

http://spotlight.education.uconn.edu/2011/carofano-odds-are-with-all-american-stats-teacher/

Monday's HW

Tonight you should complete the problems identified in class on our powerpoint slides. I've provided the answers below--if you want full credit, just the answers won't cut it! You need to show work!

1. "O negative blood" We expect to examine 16.667 donors; P(first universal donors is one of first four people) = 0.21925

2. "Suppose 20 donors..." b. We can assume independence because 20 donors is less than 10% of all blood donors. c. Mean = 1.2, St. Dev = 1.06; d. P(2 or 3 universal donors) = .311

3. "Colorblind Males"

• On average, a person should expect to ask 12.5 people to find one colorlind male.
• P(no colorblind among first 4 men) = 0.7164
• P(first CB on 6th person) = .0527
• P(CB on 1st or 2nd or 3rd....or 9th or 10th) = .5656

4. Olympic archer

• P(first bull on 3rd shot) = 0.032
• P(at least one bull) = 0.999936
• P(first bull on 4th or 5th) = 0.00768
• P(exactly 4 bullseyes) = 0.24576
• P(at least 4 bullseyes) = 0.90112
• P(at most 4 bullseyes) = 0.34464

5. Can we use probability models...we'll discuss in class

6. "Left Handed people"

• P(first lefty is 5th) = 0.0745
• P(some lefties) = 0.502
• P(lefty is 2nd or 3rd) = 0.2115
• P(exactly 4 lefties) = 0.0012
• P(at least 3 lefties) = 0.0179
• P(no more than 2 lefties) = 0.982

Monday/Tuesday HW

Your homework is on the back of our expected value/variance outline:

Tonight: page 381: 5,7,19,23,25,32

Tomorrow (EVEN IF WE HAVE A SNOW DAY!): Page 382: 8,18,27,33,37

Back to the grind...

Alright, here we go 3rd quarter....

Your homework is as follows: read chapter 16, and complete the AP problem distributed in class--you can also find this with our classroom powerpoints entitled, "Juana and Carroll."

Good luck! The AP problem is your first grade of the quarter so do a good job! And then, do an even better job (if possible) on Monday's reading quiz!

Want to get ahead in stats?

First off, period G, you better study. It's not an easy exam.

If you want to get ahead, when we get back we'll start talking about expected value and variance, and your homework on the first day back will be to read chapter 16.

So, if you want to get your homework done ahead of time, read chapter 16!

REVIEW PROBLEM SOLUTIONS POSTED

After the worst shoveling experience of my life, I warmed up with a Vanilla Chai and some Stat problems...you can find the solutions to your homework with all the powerpoints titled, "*****Midterm Prob/LinReg Review Solutions*****.

Check the post below for a breakdown of the exam.

You have all the resources you need. I know it stinks we didn't get more time to review in class-we'll do plenty of that for the AP exam. As for midterms, you're on your own to study--step your game up!

Pressure's on...exams start tomorrow

Well, with all of these snow days we've lost some good opportunities to study together. Exams WILL START TOMORROW--that means it's your job to get prepared.

Below I'm posting a breakdown of exactly what's on the exam. Later today I'll be back to post the answers to your homework, in detail, for you to study.

I will not be having any reviews after school--I don't think this would be fair to the B period students. We're a team, so you're going to get the same challenge they did. I have faith though--study these topics below, use the Barron's book, you got this...

AP FREE RESPONSE SECTION (5 questions, you must complete 4)

1. Linear Regression: interpret slope, intercept, R^2, describe association, know leverage/influence/outliers,
2. Probability: use the independence formula, use "and" "or" "not" "given," "at least one"
3. Univariate Data: draw/compare boxplots, use Normal model to find %
4. Gathering Data: know blocking, create blocks, confounding variables, describe randomization process, generalizing results, experiment vs. obs. study vs. survey

AP MULTIPLE CHOICE SECTION (25 questions + 2 EC)

1. Linear Regression: 4 questions
2. Simulations/Surveys/Bias: 5 questions
3. Univariate Data/Graphical Displays: 7 questions
4. Probability: 8 questions (independent v. disjoint, tree diagrams, conditional probability, etc.)
5. Using Normal Model: 3 questions

Tuesday HW and Review!

Here's your homework for tomorrow (or more likely Thursday): complete questions 4,5,6,8,10,11,12,14 (unless your Anthony Silva, in which case you also have to do number 9 to get full credit).

Our after school review will be held on.....

Friday. Maybe Thursday too--I just have to talk to my dentist first!

Monday HW

Tonight's HW: Complete the 6 questions handed out in class (on the powerpoint slides).

Tomorrow we'll start thinking about review and start preparing for our midterm exam.

SATURDAY SESSION CANCELLED

Unfortunately tomorrow's review has officially been cancelled and rescheduled for Saturday, February 5th.

It's unfortunate we didn't get this opportunity to review for the midterm exam with some of the best students and teachers from across the state; it puts a little more responsibility on our shoulders to prepare for the exam.

However, the rescheduling also gives us one review per month for February, March, and April, the 3 months leading to the AP exam.

Enjoy your weekend; get your multiple choice and AP problem done--and I'll see you all Monday.

Tuesday HW

Sorry for the no post yesterday--I know, I'm slacking. I'm back on top of my game though...

Your homework tonight is to complete the 2 conditional probability questions (one from 1997 regarding disease, one regarding "Mr. Murphy"--SKIP F ON THIS QUESTION! Or, make up an answer--I have no idea what it's getting at.

The AP Problem: Using Probability is due MONDAY. This will be graded.