End of 06!

Monday's Homework: Ch. 16 #24, 26, 28, 32, 38
Tuesday's Homework: Unit IV Review: #1-3, 5, 12, 15, 16ac, 23, 35-37
Stamp Sheets due before break.
Last Extra Credit of the year due before break.
Test Thursday
Tutoring Monday and Tuesday.
Merry Xmas!

Thursday

Ch. 16 #4, 6, 8
Scramble #3

Tuesday

Ch. 15 #13 and 14 + Scramble #2

Tuesday

Ch. 15 #13 and 14 + Scramble #2

Wednesday

Ch. 16 #1a, 9a, 16

Monday, December 11th

Ch. 15 #6, 8, 10, 20ac, 24

Thanks!

Friday!

Ch. 15 #2, 4, 20b & Scramble worksheet #1

NOTE:  About 5 scrambled worksheets are going to be coming at ya'.  They will be a mixture of all the different kinds of probability problems we will learn how to do.  Please keep them and do not write on them.  I will collect them on the day of the final.

Thursday

Just the article, please.

Wednesday, Dec 6th

Ch. 3 #14
Ch. 14 #18, 20, 24, 25

Monday & Tuesday

Ch. 14 #4, 8, 10, Ch. 6 #25b

Ch. 14 #12 & 14

Last week of Unit 3, first week after Turkey Week

Monday:  Ch. 11 #2, Ch. 12 #20, Ch. 13 #32

Review (due Thursday): 
Crossword puzzle
Unit 3 Review #2-18 even, 23, 24, 28a, 34

Quiz coming soon!

10 multiple choice the last 15 minutes of Thursday
3 free response on Friday

The only possible old problem is normalcdf.

The last few days before Thanksgiving

On Wednesday we discussed confounding as related to #26.  VERY important concept.

HW:  Finish reading Ch. 13 and summarize articles 5 & 6

On Thursday we discussed matched pairs and looked at why #`16 was mp's and how #30 could be designed mp's.

HW:  none

On Friday there was a sub.  Your assigned work was #21-25 in Chapter 13.  I will stamp that work after break.

Have a great holiday!

Tuesday

CW:  Ch. 13 #9 & 11
HW:  Read pages 253-257
HW:  Ch. 13 #4, 6, 8, 26, 28
Due Thursday:  Article 4 & 5

Monday, Nov. 13th

We started Chapter 13 today.  We took some important notes on designing experiments, introducing a lot of this chapter's vocabulary. 

HW:  Read (that's right, READ) Pages 246-251
Do:  Ch. 13 #1-3

Wednesday (the end of homework for this week!)

Ch. 12 #17, 18, 24

Tuesday

In class:  #3, 5 & 11
HW:  #8, 10, 12
Chapter 12

Monday!

Chapter 12 #2, 4, 6

Wednesday, November 1

Today we did two old free response problems.

Test on Thursday everything we've done this week.

Halloween!

We did some practice multiple choice today.  This was great practice for the type of CONCEPTUAL questions that the multiple choice can cover.  If you've been getting low MC scores, you might want to think carefully about what you've learned on these questions.

Upcoming events:
Wednesday:  2 practice AP questions
Thursday:  Test!
Friday:  Substitute (but don't worry, you'll be busy!)

Monday

Page 211 #37
Finish worksheet
Compare and contrast types of graphs learned about this year and their uses.

Friday

After we took the make-up regression quiz, I assigned this problem:

1978—63,042

1979—226,260

1980—907,075

1981—2,826,095

Year vs. acres devastated by the gypsy moth.

 

Please do this:

1)       Graph and describe

2)       Take log(acre) to linearize

3)       Graph and describe year vs. log(acre)

4)       Find LSRL, write it down in context.

5)       Graph resid and interpret

6)       Make a prediction for 1982

Test tomorrow!

Study for your regression test tomorrow.  Study Wednesday's worksheet.  You could also use your taxi test for a useful study guide.  You could also use the list of problems I assigned last week before we took the taxi test. 

Good luck!

Wednesday

We did a review worksheet today.

Tuesday

We did Ch. 10 #7 in class.  If you were absent, make sure to do it.

HW:  Ch. 10 #1,2

Monday, Monday

Article #4 due tomorrow

Thursday

We did a great little vocabulary crossword puzzle today.  I will stamp the review on Monday, but you obviously want to finish it tonight.  I also noted that there are two typos on the review.  The last line should be 5 d, 15c, 17ef, 27g.

Happy studying!  See you all tomorrow!

Wednesday

Today we took a normal quiz and I passed out a list of review problems for Friday's test.  The review sheet contained this information:

Here's some review for regression.  Hopefully, nothing is surprising here.  LSRL's, r, R^2, residuals, slope and y-intercept.  You should know the drill by now.  There are three different ways you can find the equation of the line, so after warming up with sofa, your first 3 questions go over those 3 methods.  I recommend you do these problems in the order they are listed.  They are all odd, so if you're self-disciplined, you can get some good review done and check your work as you go.

 

Unit 2 review (p204…)

• correlation/sofa: #1, 17a
• Write the equation:  #3c, 5a, 27c
• Use the equation!: 5bc, 27def
• r & R^2:  #7acd, 27ab
• residuals:  #5c, 15c, 17ef, 27c

Tuesday

What can r tell you?  Not much without a picture!

Wandering Point Worksheet
Ch. 9 #11-14

Monday, Oct.16

Ch. 8 #2a, #8de

In class we did #1ab & #7e

Friday

Oops, forgot to send it!

Unit 2 Review #8 & 9--make sure you check a residual plot, too!

Thursday

Ch. 8 #4, 8abc

Wednesday--residuals!

Today we learned how to find a residual = y - y-hat

HW:  Ch. 8 #23ef, Page 106 #8

Tuesday

HW:  Ch. 8 #6, 28ab, 29b

If you want to play with and contemplate the Least Squares: 

http://www.dynamicgeometry.com/javasketchpad/gallery/pages/least_squares.php

Monday, Oct. 9

Today we talked about slope and y-intercept in context. 

We did these problems in class:
Ch. 8 #21abc, 23abcdg, 25acef

Homework:
Ch. 8 #29ac, 32abefgh

Friday

Today we took a group quiz.  If you were absent, you need to get it on Monday and it will be due on Tuesday.

Wednesday

If you missed class, go to my web site and click on "Guess my correlation" and try it out for a bit!
Take notes on the bottom half of page 124
HW: Ch. 7 #17-20

Tuesday

Ch. 6 #26
Notes on correlation

Monday, Oct. 2nd

Ch. 6 #25
Ch. 7 #1, 5, 8

In class today we took some notes on SOFA!

Last week of September

Here is a big review assignment.  Two stamps.  Half due by Tuesday, half due Wednesday:

Unit I Review (starts on page 105):  #31, 32, 21 (with the outlier test for c), 29 (please add a boxplot), 26, 27, 25abcd, 5, 30f

Reminder:  Friday you have Project 1 due and your first extra credit assignment

Friday

We practiced the normalcdf problems from the "Old School" book.

Homework is Ch. 6 #27(a) & #28(ab) 

Wednesday

**We did in class:  Ch. 6 #3, 5 & 6

Tuesday, Sept. 19th

Today we went over ogives and changing data.  In class we did:

Ch. 5 #30, Ch. 6 #2
We also did the outlier check for #30

HW:  Ch. 5 #29, Ch. 6 #1

Monday!

Classwork:
Discussed quiz
Ch. 5 #5ab
Ch. 5 #27ab
Ch. 5 #35

Homework:
Ch. 5 #6, 7, 12, 19, 36, 41

Good Answer #14

      4-cylinder is skewed to the left, 6-cyl. is skewed right and 8 is symmetrical.

      4-cyl has a median around 32, 5-cyl. and 6 are at 21, 8 is even lower with a median mpg at around 18!

      The 4 cylinder has more variation, the 6 and 8 have less variation.  The IQR's are:  7, 4 and 2, respectively!

Note that the 6-cylinder has an outlier and there is only 1 car with a 5-cylinder engine.

Good Answer #13

Here's a good answer for Ch. 5 #13:

Both male and female distributions are skewed to the right.

Males have a median around 24, while females marry much younger at a median age of around 21!

The middle 50% of men goes from 23 to 26, while the middle 50% of women goes from 20 to 23.

The IQR of both groups is about 3!

The men marry so much older than the women, the third quartile of the women is about the first quartile of the men!

Thursday

Ch. 5 # 15, 16, 23, 25
Ch. 4 #30
Ch. 3 #19

Wednesday, Sept. 13

Do Ch. 5 #24

If you were not in class read about the outlier rule on pp. 60-61. 

Tuesday

Finish the quiz.  Add a segmented bar graph that shows gender distribution.

In class we made box plot and learned the vocab:

• Q1
• Q3
• IQR
• median

We also learned how to make a boxplot on our calculator (TI-Tip, page 63)

Monday, Sept 11

Get a parent signature
Ch. 4 #19, 20, 28

Thursday & Friday

On Thursday we took notes on Shape, Center & Spread from pages 39-42.  This vocabulary is crucial to CUSSing.  We also learned how to make a histogram on our calculator.  You can read the TI Tip in chapter 4 to help you with this.  Don't forget the TI Tip on page 11 is the first step in the process.

In class we have CUSSed for: 

• The sibling dotplot
• Ch. 4 #5
• Ch. 4 #7

We described the stemplot for Ch. 4 #11 (McGuire) and we hand-made a stemplot for #13

Homework for the weekend:  Ch. 4 #4, 6, 8, 12, 14

Sept. 6th

We took some very important notes about CUSSing:

Center
Unusual Features
Shape
Spread

We will explore this more on Thursday.

You have no official homework tonight, but you might want to read the article and summarize it for Friday.

Tuesday, Sept. 5th

Ch. 2 #14
Ch. 3 #22, 23, 30
Syllabus Quiz--study!

We discussed independence thoroughly today.  You should be able to justify independence vs. dependence using percents to back up your claim.

Friday, Sept. 1

Ch. 3 #15, 16 & 18
Your homemade die is due Tuesday as well!
Enjoy a much deserved 3-day break.
Chapter 2/3 quiz and syllabus quiz coming sooooon!
:o)

Aug 31

**Think carefully about Ch. 3 #8e--can you decipher this huge pile of words?
**In class we answered some questions about the gender politics table and started Ch. 3 #15

Aug. 30

Ch. 2 #8

Ch. 3 #5, 6, 8

Sept. 29th

**Read Chapter 1
**Chapter 2 #4-7 (we did 2 and 3 in class)
**Take a book walk and look through your whole book.  See what it has to offer.
**Try the TI-tip on page 11 with the sibling data from class.

August 28

Today in class you:

• Filled out a 3x5 card with a bit of info
• Got the syllabus
• Recorded a bunch of M&M data
• Made one dotplot

Homework is:

• Make a pair of homemade dice--due Monday
• Make 2 more dotplots from the M&M data
• Read the syllabus (quiz coming soon!)

Start bringing your calculator to class!!

Thanks for a great first day!

Welcome Back!

Congratulations!  You found the homework page for AP stats!  Everything below this post is from last year, which will just stay put for future reference.  I'm looking forward to a great year!

Mr D

Project Part 2

Exploring the Data

Due Friday, June 2nd

This section should be an outstanding example of exploratory data analysis (the first unit in our text, chapters 3, 4 & 5).  Graphs should show the comparisons between all relevant groups you are comparing.  You should state any preliminary conclusions that can be drawn by using your eyeballs.

• Graphs of your data
• Statistics from your data
• Descriptions of the graphs and statistics.
• Extra Credit for using DataDesk!

Correction

Oopps! That is, chapters 12 for surveys and chapter 13 for experiments!

Project--Data Design

Due TOMORROW! MLA format
oDescribe how you collected your data (at least 1 paragraph).
oDescribe what biases you think you successfully reduced.
oDescribe what biases you do not think were reduced successfully.
oUse the proper vocabulary from chapters 13 and 14!!

ELM

Hey geniuses!

If you are taking the ELM, you should study!  Here are two web sites to help you out:

http://www.sa.sdsu.edu/testofc/elm_guide.html

http://library.csus.edu/guides/rogenmoserd/hall/mathtest.html

Last Minute Tip #3

**Read the whole problem (a, b, c...) BEFORE you start it.  Often times the pieces of the problem will be connected.

**Pick a side and defend it.  Don't ride the fence!

**If a problem says use TWO things to justify, make sure and use them BOTH!  If a (c) says, use (a) and (b), use them both!  If you are choosing between two options, don't just say why you like the one you choose, also state why you DON'T like the other.

Good luck!

(This tip is not sponsored by anyone or anything.  In fact, all sponsorship has been pulled until further notice.  I would mention one of my favorite product s, just for fun, but they might sue me.  Regardless this unusual hosti lity, I will survive!)

Last Minute Tip #2

Speaking of confidence intervals, I also noticed at the review session that you guys are great at interpreting the INTERVAL:

I am 95% confident that the true percentage of Laker fans lies between 85% and 92%.

But not so great at interpreting the confidence LEVEL:

This procedure, when repeated over and over, would produce intervals that would contain the true percentage 95% of the time.

Hope this helps also.

(This tip was NOT brought to you by Coke.  Coke gives you the runs.)

Last Minute Tip #1

I noticed at the review that some people were surprised at how much was needed for a confidence interval.  When asked for an interval, you should:

Name it
Check the conditions for it
Show the formula
Write it and interpret it

Hope this handy tip helps! 

(This tip was brought to you by Pepsi.  Drink Pepsi and find everlasting happiness and joy!)

Answers to Friday's Quiz

D-5:

A)  For essentially correct you needed three things:

• Randomly assign the treatment to
  
• two treatment groups (new drug and old drug)
• and compare the chltr. at the end

B)  Two things:

• Blocking LINKED to cholesterol level
• Randomly assign treatment

C)  Yes:  neither the PATIENT nor the DOCTOR knows who's getting which drug.  (only one guy with the secret code).


J-1:

A)  Boxplots must have labels and you should have figured out that their are two low outliers and one high outlier for graph A.

Bi)  To make the proportion sound best, chose A.  With A, over 75% of the cars improved, whereas with B only 50% improved.  Note:  must compare to B for full credit.

Bii)  To pick the highest mean, pick B.  B has a lot of higher values than A.  A has low outliers which will pull it down.  The top 25% of B is from 25 to 40, which is above A's max.

Email me if you have any questions this weekend!  (mrmathman@gmail.com)

The last of the review

Tuesday/Thursday we did:

• Ch. 10 #1 & 2
• K-1

• M—1, 3, 5

 

I also handed out a list of flash card facts to memorize and will pass out on Thursday the answers to 97 and 02 MC.  

Extra Study Sessions

The Last Week Before the Test!!

Tuesday:  2:30-4:00
Wednesday:  2:30-4:00
Friday:  2:30-7:00 (bring $$$$ for pizza!)

HW/CW for Monday, April 24th and beyond!

In class we did:

Type I & II errors

• Do P. 418 #7 & 9 (use page 410 to refresh memory)
• H-2

Pink Sheets (2nd and 3rd only)

• G-4:     1-prop z-interval
• H-5:     Chi-sq
• I-3:       2-prop
• K-4:     2 mean interval

 

HW:  Page 511 #9, 13, 23 (check conditions for all three problems)
         MC 2002--This is crucial! 

Try to get all this homework done on Monday, Tuesday, and Wednesday night.

 

In Class--Friday, April 21

We went over the AP test breakdown and did problem A-5.  This was our review of matched pairs t-test.

AP Test Breakdown

The AP test is:

20%-30%  Exploring Data (first 5 chapters) and Regression (7-9, a little bit of 10)
10%-15%  Designing Experiments (12 & 13)
20%-30%  Probablity
30%-40%  Confidence Intervals and Hypothesis Tests

Make sure you know those pink sheets!

Homework for the weekend--April 21st

You must show me evidence that you studied at least one hour over the weekend.  That is what I will stamp on Monday. 

Suggestions:

• Study the probability worksheet and your probability final
• Do the 7 pink sheets we named on Thursday
• Make a list of the conditions for every test
• Make some flashcards
  

Answers to Thursday's work

Here are the answers:

• A-4:  2-prop z-test
  
• A-5:  matched pairs mean t-test or 2 mean t-test
  
• C-2:  X^2 two way table
  
• D-4:  2 mean t-test
  
• E-5:  matched pairs mean t-test
  
• F-5b:  2 mean t-test
  
• H-2a:  1-prop z-test
  

Homework for Thursday, April 20th

AP test takers:

In class we took notes on how to tell the different pink sheets apart from each other.  Here's a few highlights:

• LinReg t-test:
• Hardly shows up on the test
• Conditions are given to you
• Look for the computer output
• Chi-Square
• Look for categorical data
• one row means GOF
• a table means 2-way table (matrix)
• prop z-tests
• look for __ out of __
• count 1 or 2 n's
  
• mean t-tests
• look for mean(s), sd(s) and n(s)
• look for a list of numbers
  
• 1 n or 2 n's or matched n's?

Now do this.  Read these 7 FR problems and just start by NAMING each test:

• A-4
• A-5
• C-2
• D-4
• E-5
• F-5b
• H-2a

Homework:  Study the 20 probability problems, your old probability final and/or start doing some of the 7 pink sheets listed above. 

List of all AP review

For your convenience, here is a list of all the AP problems we have done:

Week 1

Monday:

• F #4, G #1, MC-Z #1-10 + the non-AP book problems

Tuesday:

• D #1, C #3, B #5, MC-Z #11-15

Tuesday tutoring:

• I #1

Wednesday:

• D#5, E #4, F #2, G #3

Wednesday tutoring:

• H #4 & K #2

Thursday:

• MC-Z #16, 17, A #1, J #1, 2, 3, 4, 5

Friday:

• B #6 & MC-A #1-14

Week 2

Monday:

• MC-Y #15, E-2, G-2, F-3, K-3

Tuesday:

• B-1 and MC-B

Tuesday tutoring:

• H-3 & I-5

Wednesday:

• Probability worksheet (see two posts down!)

Thursday--4/20--we'll see!

non-AP Homework

Here's the non-AP homework, as of April 20th:

• Week 1:

Monday/Tuesday: 

• Ch. 7 #5 & 11
• Ch. 8 #9 & 35
• Ch. 9 #11
• Ch. 10 #1

Wednesday:

• Ch. 7 #1, 17
• Ch. 8 #5, 7
• Ch. 9 #1
• Ch. 10 #2

Thursday:

• Ch. 12 #11, 15, 19
• Ch. 13 #23, 25

Week 2

Monday:

• Quiz

Tuesday:

• Ch. 3 #5 & 15
• Ch. 4 #5, 15, 19, 29

Wednesday:

• Ch. 5 #13, 23, 25, 29, 31

Thursday (today!)

• Start the probability worksheet that the AP students did.  Those problems are listed on the post below.
  

Good luck! 

Mr D

Wednesday's Worksheet

Here is what we did on Wednesday, April 19th:

So here's the plan.  I have listed one of every type of probability problem from the text.  They are all odd.  Show your work.  Check your answers.  Each number is a different concept—keep each one separate!  Here they are:

 

1. Ch. 6 #25a
2. Ch. 6 #25bc
3. Ch 6 #25e
4. Ch. 14 #13a-2
5. Ch. 14 #13b-1
6. Ch. 14 #13b-4
7. Ch. 15 #5b
8. Ch. 15 #9d
9. Ch. 15 #15a
10. Ch. 15 #23
11. Ch. 16 #15a
12. Ch. 16 #15b (hint:  look on P. 311—this is just a boring calculator problem.  Another hint:  can you find this formula on your formula sheet?)
13. Ch. 16 #3
14. Ch. 16 #33ab
15. Ch. 17 #13d (Hint: This is binomial.  Use Binomialpdf in handy stats.  Also, there is a formula for this one, can you find it?  Can you write it?  See the example on P. 321-322)
16. Ch. 17 #15ab (Hint:  Your formula sheet has these two formulas!)
17. Ch. 17 #13a 
18. Ch. 17 #15c (this problem is optional)
19. Ch. 18 #9 (Hint:  If this feels like a 1-prop z-test, you're right!)
20. Ch.  18 #21cd (Hint:  central limit theorem)

 

WOW!  That's a long list.  But a lot of the problems are short. 

 

Now do this:  go back and put a word or phrase on every problem.  If you are going to recognize a problem on the AP test, you have to name it!  A problem without a name feels lonely and neglected!  Give it an identity!  I'll get you started:

 

1. drawing a normal curve
2. normalcdf
3. inverse normal
4. disjoint—or—add
5. independent—and—multiply
6. at least one = 1 – P(none)
7. you do the rest!

Homework--Wednesday, April 19th

Today's homework was long, but crucial.  I gave you a list of 20 problems of each probability type on the AP test.  Good luck!