The Weekend!

It's that time again....hopefully the rain holds off because there's nothing better than some AP Stats, outside, in fall.

I think someone should create an AP Stat 2012-2013 facebook group--might be a nice way to get homework, bounce ideas around, etc. Maybe some extra credit for the administrator and those who participate?

Happy Birthday Tedisha (today)! And Monica (like a year ago)!

This weekend, please complete the 16 multiple choice (review) questions. Remember, all answers and work must be shown on the answer sheet to receive credit! This is worth twice as much as an open ended AP problem, so don't forget!

For the 8 or so who were absent, I fully expect you to complete this multiple choice. You can find this under the classroom powerpoints and assignments link. Scroll down to assignments and select "Chapter 1 - 5 Multiple Choice."
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Also, if you'd like to get ahead, Monday's homework is listed below:

Monday HW:
page 123: 1, 5, 7, 9, 11
Enjoy the weekend!

"The Hers Day" Homework

Half day! And only one more until the weekend!

QUIZ TOMORROW! The post from a couple days prior has the exact quiz breakdown.

STUDY STUDY STUDY!

So, you're homework is to STUDY!

When's Day

Tonight, please complete the chapter 6 reading questions (provided in class). Make sure your answers are neat, organized, and clear!

If you forgot/lost/don't have the handout, each of the (9) questions are provided below:

Use your textbook to answer each of the questions (from chapter 6!) below:


1.) What does a z-score, or standardized score, measure?

2.) What is shifting data? And how does it affect measures of position (max, min, mean, median, etc.) and spread (range, IQR, standard deviation)?

3.) What does it mean to rescale data? How does rescaling affect measures of position and spread?

4.) Calculate the z-score for a student who scored 91 on an exam, if the class had an average of 87 and a standard deviation of 1.8. (Use the step-by-step example on page 107 as a guide).

5.) To apply a Normal model what shape must our distribution be? Describe the shape in words, and provide a picture.

6.) The standard Normal model has a mean of _________ and a standard deviation of _________.

7.) What does the Empirical, or 68/95/99.7 rule tell us? Explain in words (p. 109!).

8.) If a distribution is normal, what shape does a Normal probability plot show?
9.) What is a statistic?

And remember, quiz Friday!

2's Day....

Last homework from chapter 5! Woop woop!

Please complete page 96:

33b-d (I should see 3 boxplots!)
37
41 (I expect AT LEAST 5 complete sentences!)


• QUIZ FRIDAY!

• This has been moved, yet again, so that those in need of help can come after school for more practice on Wednesday or Thursday!
• Comparing Boxplots: You will not be given the entire data set—only some values below Q1, Q1, the median, Q3, and some values above Q3—so you must make the boxplot by hand! (You can’t use your calculator!)
• Chapter 5, Quiz C! So you should study chapter 5, quiz A!....
• Determine shape from the 5 number summary
• Determine if there are outliers from the 5 number summary
• Reading boxplots…

Monday HW

Tonight, please complete the following:

Page 94: 21, 27, 31, 35


Also, please complete questions 1-3 on the San Fran vs. St. Louis handout. We'll use this as the basis for our discussion in comparing boxplots tomorrow!   And tomorrow you'll have a quick (5 question) matching quiz!

Weekend HW (Sorry...)

This year is flying by--progress reports are already coming out (well, in 2 weeks!)

This weekend, continue to enjoy the beautiful weather. While you're outside, please complete the remaining 9 multiple choice questions (you did 1-3 already)--this will be collected and graded on Monday.

If you'd like to get ahead (since you have so little homework), Monday's homework is listed below.
Monday HW:
Page 94: 21, 27, 31, 35

On Monday we'll get into the group work (that I wanted to do today :( ), practice wtih comparing histograms/boxplots a little, and wrap up as we move into chapter 6. Yay!

Thursday Homework (Go GMen!)

Almost done with another week!

Tonight, please complete:

page 91: 9 (but don't check by hand!), 13, 19, 24, 29


Answers to 24:
a.) April
b.) February
c.) August
d.) Both distributions of ozone level for January and June appear to be fairly symmetric; there were two years with ozone levels consider outliers in June, but no outliers in January. The median ozone level for January is slightly less than that of June. Ozone levels in January were much more variable, as it had both a higher range and higher interquartile range (IQR)--in other words, ozone levels in June were more consistent.

e.) Median ozone levels generally increase from January to APril, then decrease from April through October, before again rising again from October to January to April--it appears this is a cycle (in changes in ozone level). The ozone levels are more variable (spread out) in the winder months, and increase in consistency ffrom March Through August (as the interquartile ranges and ranges generally decrease over this time).

And just a heads up--tomorrow you'll have another multiple choice (pop!) quiz, but this time on your own--so do an extra-nice job on tonight's homework! The questions are more difficult than the first three, and are generally about boxplots and other types of quantitative displays (dotplots, histograms, stemplots).   After that we'll do a couple things in groups--lots of graded work tomorrow!

Wednesday!

For those of you who spent the day at the Big E, I hope you had a fantastic time! It looks like the weather quickly turned around to provide you all with a beautiful day!

As for the rest of us (stuck in school), the homework for tonight is to complete our boxplot practice! (the yellow paper we started in class).

Tuesday HW

Tonight please complete #'s 1-3 (completely) on the Quiz A--Chapter 5 worksheet provided in class.

Here are a few tips:

1a. If you need help with the histogram (by hand and on your calculator), use the TI Tips in the yellow box in your textbook (for calculator help!) Histograms are in chapter 4.

1d. Look at the shape of the histogram! If it's skewed, we use median and IQR. If symmetric, we prefer the mean and standard deviation.

2a...Think!

2b. Calculate the "fences" we discussed today in class to find the boundaries for outliers.

Monday HW

Back to the grind...

Tonight, please complete:

Page 91: 3 (use your calculator to find the 1 Var Stats!), 5, 7, and 17a

Weekend HW

Please complete the 2 AP problems provided in class.

We'll talk about these a bit in class Monday; please take the time to work through these--then, check out your answers online to see how you did!

Enjoy the weekend weather. I'm excited to get back to work Monday!

Thursday HW (and the weekend's almost here...)

Tonight, please complete the 12 multiple choice questions provided in class (regarding graphical displays). These should help us think about graphs of quantitative data as we prepare for our quiz tomorrow!
*Please make sure your answers are recorded on the answer sheet provided.

This will be collected and graded as an AP Problem/Classwork grade, so do a good job!

***We have not discussed number 6, so don't stress--we'll worry about it together in class!***
Remember, your quiz is two questions over 12 minutes--create a histogram and then describe the distribution. Good luck!

Wednesday HW

Please complete the following in your textbook:

Page 66: 13, 15, 21, 23

Remember, we'll have a quiz Friday! It'll be short (maybe 12 minutes?). You'll have to create a histogram, and then of course, describe the distribution.

Also, be ready for a surprise (but not anymore) AP problem with your group! Yesssss!

Tuesday HW

Tonight, please complete the following:

Page 65: 3,5,7,9 and use the data in #12 to make a histogram (do not do parts a-d, just make a histogram of the data)!

Enjoy!

**I strongly encourage you to use your calculator to make a histogram for #12, then simply transfer this information from your screen to your paper. If you need a refresher on how, check out the TI Tips on page 54). Or, follow this link...

http://calculator.maconstate.edu/histogram/index.html

Monday HW

First full, 5-day week! Wooooo!

Tonight, please complete the following in your textbook:

Page 64: 11, 19, 31

Weekend HW: Take Home Quiz!

Please complete the (chapter 3) take home quiz provided in class for Monday. Don't forget! This is your first quiz grade! Any late papers will be docked points, and none will be accepted after Wednesday. (You lose 5 points each day).

***I don't feel comfortable counting the independence question as part of your homework--I think we need some more practice. Therefore, the 2 sided paper will be collected (it's your quiz). We'll go over the independence question (regarding exercise and gender) Monday in class.***


If you can't find yours or prefer an electronic version, I've uploaded the quiz. Just click the "Powerpoints and Assignments" link, scroll down to the "Assignments" section, and it's titled "Chapter 3 Take Home Quiz."

And of course, don't forget to enjoy your weekend! It's our first five day week next week! We'll be getting into explorations of quantitative data, so I'm about to get even more excited.

See you Monday!

Brittany W.--hopefully you have the best weekend of all! Happy birthday!

Thursday HW

Tonight please complete:

Page 38: 11, 16, 27, 39

Wednesday HW

Please complete the following for homework (this will be checked for completion tomorrow in class):

¡9, 11, 14, 19, 23a-e

Tuesday HW

Tonight, please complete the following:

Page 17-18: 20, 26    (Please complete these on the paper provided; these will be collected and graded).

Page 36: 5,7    *(A relative frequency distribution is a table with % rather than raw numbers).

Here's an email I just sent to one of your peers regarding your homework--maybe it'll help recap what we talked about in class.

Also, I've uploaded a pdf file of the homework, just in case you can't find yours.

You have two jobs for each of the circled scenarios. First, identify the variables that were recorded and whether you think they're quantitative (a measurement of some type, with units) or categorical (results separated into groups/categories). Then, try to identify the context:

Who is the study about? (Who (or what) provided the data/information?)

What is being recorded? (This will be the same as your variables list, no need to write this twice)

Where is this study done? And when?

Why is this information being collected?

How is it being collected?

We did talk about this some in class, so just do your best. We'll be discussing our responses tomorrow in class. I can't wait!

Enjoy the rest of your labor day!