Welcome back!

Welcome back! I CAN'T WAIT to get into some more probability tomorrow!

We have 3.5 weeks until our next vacation, and after that only 4 classes until midterms...so our quarter is essentially over after this 3 week(ish) stretch; let's maintain a solid focus and continually push ourselves to work hard, every day, and earn our winter vacation. Let's do every homework assignment, stay focused in class every day, and most importantly, let's have perfect attendance until this vacation. We'll wrap up with our two unit tests (math and vocab) right before vacation--let's end strong!

Tonight, please complete the Venn diagram worksheet provided in class. (I'm checking tomorrow!)

If you were out today you missed the STAR test; you will have to make it up unless you have another math class (if you have another math class, you'll do it in there...)

See you all Tuesday for some conditional probability and tree diagrams! Be ready to think! :)

Glad to see you all today! 

Happy Thanksgiving!

Make sure you complete your probability take home quiz for Monday!

Enjoy your time off...relax, eat lots of food, spend some time with family and/or friends...recharge your mental batteries and be ready for some intense probability when we come back!

Over break, be sure to get your take home quiz done. Remember to show work for each question to receive full credit!

If you lost yours (or didn't get one somehow), you can find it under our Classroom Resources: Powerpoints, Assignments, Etc. link on the right. 

Also, don't forget that we have the STAR test in the MATH COMPUTER LAB on MONDAY 11/30 when we return! See you there! 

(Your take home quiz is still due Monday! You'll have other homework Monday night...)

Have an amazing lil' break! See you soon!

Monday HW

Tonight, please complete the following in your textbook (I'm checking)!

Page 362: 1, 3, 5, 7, 19

• For #1 you have to list the sample space, or all of the possible outcomes for each scenario; for example, if look at 2b...
• If a family has 3 children and we record the genders in order of birth...Sample Space (S) = {BBB, BBG, BGB, BGG, GBB, GBG, GGB, GGG}
• For #2 and 5, use today's notes/examples from class!
• For #7, use the table to answer each question (like our old Titanic problems...)
• For #19, remember that we are selecting batteries WITHOUT REPLACEMENT. This means that when we take a battery out, we do not put it back...
• So, we can still rewrite questions with words, but our fractions will change...
• For example, for 19a:
• P(both good) = "GOOD and GOOD" = (7/12) x (6/11) (This is 6/11 because we took one good battery out, so now there are only 6 good ones left and 11 total batteries left)!

Tomorrow we'll answer homework questions and get back to our notes before Thanksgiving! See you there!

Vocab Quiz/Thanksgiving Take Home!

Chapter 14 Vocab Quiz on Monday! Study! (definitions are in italics in case you were out!)

• Probability (the likeliness of an event; the long run relative frequency of an event)
• Law of Large Numbers (the idea that the long run relative frequency of an event settles down to the true probability as the number of trials increases)
• Law of Averages (what does it suggest? remember, it's not true for independent events!)
• Complement (the outcomes not in an event, A)
• What should probabilities sum to?
• OR (add)
• AND (multiply)
• NOT (subtract from 1)
• Disjoint/Mutually Exclusive (events are disjoint/mutually exclusive if they have no outcomes in common, or no overlap; or, think, "they both cannot occur")
• Independent/Independence (the outcome of one event does not affect the outcome of the next event; in other words, the probability of some event does not change)
• Sample Space (the set of all possible outcomes in an event)
• Equally Likely (events are equally likely if they have the same probability to occur)
• Union (OR)
• Intersection (AND)

Also, you have a take home quiz over Thanksgiving break! Feel free to get a head start this weekend since you only have to study vocab! If you didn't grab one in class (or were out), you can find it uploaded under our "Classroom Resources" link!

QUIZ TOMORROW!

STUDY! Tomorrow we'll have a "math quiz" with a variety of probability questions (chapter 14)! Use today's classwork as a guide for your studying! (Along with these practice problems below...)

If you're looking for some more practice (other than today's classwork), try out these problems!

Page 341: 24, 28, 32

(Oh, and if you show the work and do all of these on separate paper for me to collect tomorrow, I think I'll count it as an extra credit homework assignment...but you MUST show all work!)

Here are the answers so you can check!

24.) a. 1.) 0.04         2.) 0.51         3.) 0.55
        b. 1.) 0.041      2.) 0.849       3.) 0.9744        4.) 0.373

28.) a.) 0.027       b.) 0.125      c.) 0.001     d.) 0.729      e.) 0.784

32.) a.) 0.148       b.) 0.600      c.) 0.3439

Wednesday HW

Tonight, please complete the following in your textbook:

Page 340: 13c, 23b4, 27d, 29

Tomorrow in class we'll do some classwork practice; then, on Friday we'll take our math quiz and finish our notes!

Your vocabulary quiz will be pushed back to Monday! We will have our "math quiz" on Friday!

See you all manana!

Tuesday HW

Tonight, please complete the following in your textbook: 

Page 340: 13ab, 19, 21, 27e

Tomorrow we'll get back to some math and learn about "at least one" problems! Be ready for some more difficult probability!

Until then, enjoy your Tuesday and do your homework! I'll be checking for sure!

Monday HW

Tonight please complete the following in your textbook:

Page 339: 7, 9, 17, 23

• For #9, to determine if a probability assignment is possible, check two things:
• Probabilities should be between 0 and 1
• Probabilities for the spinner should sum to 1 (because these colors should make up the entire spinner and do not overlap)
• **For 23, skip part b4

Tomorrow we'll continue learning about probability with lots of vocab! See you there!

Happy Monday!

Weekend HW!

This weekend you have two things to worry about:

1. Complete the boxplot review worksheet (provided by the sub on Thursday)
2. Complete the 2007 (Form B) free response problem (provided in class today)
• For part (a), you cannot simply draw a "random line" on your graph
• To correctly draw the LSRL, substitute (plug in) any 2 x values and solve for y; this will give us coordinates for 2 points we can plot to connect and draw the correct LSRL 

Both of these will be checked (as 2 separate hw's) on Monday!

Both worksheets are below (in case you lost your or were absent.

Check your AP FR answers online and give yourself a score! Click here for the rubric!

On Monday we'll get back to probability! I can't wait! Be ready for lots of math!

VOCAB TEST FRIDAY (tomorrow)!

First and foremost, I apologize for not being there with you today. I promise that I will do my best to have perfect attendance from now until the AP exam (not counting the two days of my honeymoon) so that I can be there to help prepare us for the AP exam!

I hope you had a productive class day with some more regression practice! I will be grading your classwork (our first classwork grade of the quarter)!

Our Unit 2 Vocabulary Test will be tomorrow! I'm looking forward to getting into our new unit, probability, after the test! I definitely miss you all today and I'm excited to get to work tomorrow!

Tonight, study! Get an A on tomorrow's test! If you were given homework tonight, I will not be checking it until Monday so that you can focus on studying tonight. You will be given an additional AP problem for homework this weekend.

Here's the vocab list (by chapter, in case you plan to use your textbook glossaries):

• 20 matching vocab words (see below)
• After the matching, there are some short answer questions:
• Identify 2 or 3 goals of re-expressing data (chapter 10)
• You are given a picture of a scatterplot and asked to identify points with...
• Most/least leverage
• Highest/lowest residual
• Highest/lowest x-value
• Highest/lowest y-value
• Which point is least/most influential?
• Which points might be outliers?

Vocab Test Thursday!

STUDY! Vocab test is this Thursday!

It's of the utmost importance that you study and ace this test on Thursday; it's pretty hard to get an A on the multiple choice test (you can only get 2 wrong), so balance out that super hard test with an A on the vocab! Prepare yourself!

After the vocab test on Thursday (you'll have about 20 min.) we'll do a stamp, and then start our next unit--probability! Yay math!

Enjoy your day off!

Here's the vocab list (by chapter, in case you plan to use your textbook glossaries):

• 20 matching vocab words (see below)
• After the matching, there are some short answer questions:
• Identify 2 or 3 goals of re-expressing data (chapter 10)
• You are given a picture of a scatterplot and asked to identify points with...
• Most/least leverage
• Highest/lowest residual
• Highest/lowest x-value
• Highest/lowest y-value
• Which point is least/most influential?
• Which points might be outliers?

TEST TOMORROW!

Tomorrow's test will cover chapters 7-10 with 23 multiple choice questions!

This test is going to be tough, as it's all multiple choice, which means no partial credit! Read carefully, both in reading the question and reading the multiple choice options! Use all of your time! There is no prize for finishing early, so use the time you have! And pay attention to details!

And use your first "Quest" to study! It's a great place to start!

Here's a breakdown of the topics covered on tomorrow's test:

• Use a linear model to predict
• Calculate residuals
• Interpret slope, y-intercept, and R^2
• Interpret r (correlation)
• Read a computer output
• Read scatterplots to identify the general trend, in context
• Identify points with the largest smallest residual and/or leverage
• Identify outliers in a scatter plot
• Use a re-expressed equation to make predictions
• Find an "actual" value using the LSRL (to find a predicted value) and residuals
• Hypothesize about how a point may influence, slope, correlation, and y-intercept
• Find r from R^2 (check the slope for the +/-)!
• Identify a potential lurking variable

Some other suggestions for ways to study...

• Remember those extra credit multiple choice? (you may or may not have done them)...try those!
• On the Chapter 10 MC (we went over it and I gave you a key today), study: 2, 3, 5, 6, 32, 4
• Study your first "Quest"
• Use some of the online resources (linked on the right) to do practice multiple choice!
• Use a Barron's book--go to the back of the "Bivariate Data" section (look in the table of contents) for various practice multiple choice!
• Study the multiple choice from today's class! (Here are the answers):
• 2.) B
• 4.) E
• 5.) D
• 12.) B (Period A, the answer IS B)
• 9.) A
• 17.) B
• 4.) E

Thursday HW

Tonight, please complete the 9 multiple choice questions provided in class. This will recap what you need to know from chapter 10! Tomorrow you'll get an answer key with all of the answers explained and work shown. (If you were absent, you can get the multiple choice in class tomorrow).

Tomorrow and Monday we'll do some AP free response and multiple choice questions and wrap up or unit, as we prepare for Tuesday's exam!

Enjoy your Thursday night!

Ch. 9 Vocab Quiz Tomorrow (and extra credit?)

Tomorrow we will start class with our chapter 9 vocab quiz! Study, study study!

Here's the list: (many of these words repeat from chapters 7 and 8, so use your old quizzes to study!)

• Residual (both how it's calculated and what it is, graphically)
• Leverage
• Outlier
• Influential Point
• Interpolation
• Extrapolation
• Slope
• Y-Intercept
• Coefficient of Determination (R^2)
• Over/underestimate (in terms of the sign, +/-, of the residual)
• Residual Plot
• Lurking Variable

Early Extra Credit Opportunity: DUE TOMORROW!

Want to start out with some early extra credit for the second quarter? Here's your chance!

Consider your "Quest" that you got back today. On separate paper, do each of the following (I'll collect this tomorrow):

1.) Look at question #2. The most common incorrect answer here was "C," or "D." The correct answer is B. Explain, in a complete sentence (or a couple), why the answer to this question is B.

2.) Next, look at question #5. Here, the correct answer is "D." (We actually did pretty well on this question). Briefly explain the mistake that exists in statements A,B,C, and E.

3.) Look at question 6. This is the hardest question on the "quest." Most people substituted "5" into the equation, and then answered "E," but this is incorrect...

• For this question, first, write an interpretation of slope in a complete sentence.
• Next, consider this question: it asks us, "what is the estimated increase in temperature that corresponds to an increase of 5 chirps per minute?" So, it's not asking us for the temperature at 5 chirps per minute, but it's asking how much will the temp. increase if the number of chirps increases by 5 chirps per minute...
• Explain, in a complete sentence (and/or show some math), why the correct answer is B. (Consider your interpretation of slope, I had you write it for a reason!)

4.) Finally, focus on question 9. Many people selected B, but the correct answer is C. Explain why B is incorrect and C is correct, in a complete sentence.

Talk to each other! Many of your friends may have gotten something right that you got wrong--so talk to each other, and help each other out! Tomorrow we'll go over each of these, so this extra credit must be turned in tomorrow!