Pie Charts!

Ch. 2 #8

Ch. 3 #6 & 8

Don't forget to scroll down to Monday to see the WebWork!

Day 2

Ch. 2 #4 & 5

Read chapter 1

First WebWork for the year

This article (click here) is very interesting.  Read it.

Now consider these questions (in your notes/notebook):

1)  Why is the average so high above the typical user?

2)  Cell phone companies have stopped offering unlimited data plans for smart phones.  Explain why the change between 2009 and 2010 makes this a sensible choice.

3)  With ATT, only users who use more than 1000 MB will have to pay more money.  What percentage of customers is this?

4)  Sticking with ATT, users who use less than 200 MB will have their bill cut in half.  What percentage of users is this?

5)  The x-axis is not scaled properly.  Do you think it should be?

6)  In the end, do you think this is good for consumers now?   Explain why you think this might be bad for consumers in the future.

One last chance

Forget about the MC tests? Do this:

First, copy this: QZF9982CNF

Then click on this link: Artist Practice Test
And answer the questions there.

Quiz starts: Now
Quiz ends: Monday, 7am

Make-up

This week you can make up MC tests you missed by doing a cumulative practice test. Or two. There are two tests available until 7am on Friday morning:

First, copy this: FFY9568LUK

Or, for a second test: AAU8357GQF

Then click on this link: Artist Practice Test
And answer the questions there.

Quiz starts: Monday, 7am
Quiz ends: Friday, 7am

Which test?

This is handy:

http://www.ltcconline.net/greenl/java/Statistics/StatsMatch/StatsMatch.htm

Warning: the wording is a bit different and there is one test that we haven’t covered. But do about 10 and you’ll get the swing of it.

more inference

L-6
O-2

Flashcards

This might be useful:

Flashcards

inference

C-2

E-5 

G-4

A-4

MC Test 11

First, copy this: HHB1679NXM

Then click on this link: Artist Practice Test
And answer the questions there.

Quiz starts: Wednesday, 7am
Quiz ends: Friday, 7am

Name it!

We discussed C-3.

We named the first 12 tests in your folder.

Blocks

E-4

J-2

O-5 (picture)

P-2

L-5

MC Test 10

First, copy this: OBJ2966BPR

Then click on this link: Artist Practice Test
And answer the questions there.

Quiz starts: Monday, 7am
Quiz ends: Wednesday, 7am

MC Test 9

First, copy this: JJD2681PZP

Then click on this link: Artist Practice Test
And answer the questions there.

Quiz starts: Friday, 7am
Quiz ends: Monday, 7am

Design

F-2
N-5

Wednesday

CLT
B-1
Q-2
Finish '97 MC

Tues/Thursday

I-2 (independence)
E-3 (simulations)
J-3 (practice, practice!)

MC Test 8

First, copy this: PIW3584VOQ

Then click on this link: Artist Practice Test
And answer the questions there.

Quiz starts: Wednesday, 7am
Quiz ends: Friday, 7am

Monday: expected value

E-2
I-5
J-4

MC Test 7

First, copy this: APO3142AHN

Then click on this link: Artist Practice Test
And answer the questions there.

Quiz starts: Monday, 7am
Quiz ends: Wednesday, 7am

MC Test 6

First, copy this: RRK4924XHW

Then click on this link: Artist Practice Test
And answer the questions there.

Quiz starts: Friday, 7am
Quiz ends: Monday, 7am

probability time!

What are the chances?

K-3abcd
O-3

MC test 5

First, copy this: SWE7798WRE

Then click on this link: Artist Practice Test
And answer the questions there.

Quiz starts: Wednesday, 7am
Quiz ends: Friday, 7am

More exploring data

In class: L-1 & M-1
HW: H-1

Don't forget MC #4 tonight also!

Prom week!

Today in class we did: J-1 and D-3

Homework: A-1 and E-1

Multiple Choice #4 due Wed 7am:

First, copy this: BRQ3153CJO

Then click on this link: Artist Practice Test
And answer the questions there.

Quiz starts: Friday, 7am
Quiz ends: Wednesday, 7am

Weekend

Today in class we did: A-6 and K-1

Homework: Multiple Choice #3:

First, copy this: JYX6475JQV

Then click on this link: Artist Practice Test
And answer the questions there.

Quiz starts: Friday, 7am
Quiz ends: Wednesday, 7am

Thursday

E-6
I-1

more regression

In class: MC-A #1-5
We added a test and interval for slope to F-4
HW: M-5, add a slope test to M-5 and C-1

MC Test 2

First, copy this: AJK5381YQH

Then click on this link: Artist Practice Test
And answer the questions there.

Quiz starts: Wednesday, 7am
Quiz ends: Friday, 7am

Regression review

In Class: F-4
Tonight: G-1 & online MC practice:

First, copy this: SSL5924XHX

Then click on this link: Artist Practice Test
And answer the questions there.

Quiz starts: Monday, 7am
Quiz ends: Wednesday, 7am

Pre test

AP test takers only. You need to take a 40 question pre-test this week to see how ready you are for the AP test.

First, copy this: AJP4325MYQ

Then click on this link: Artist Practice Test
And answer the questions there.

Quiz starts: Monday, 7am
Quiz ends: Friday, 7am

The test is 40 questions and once you start you have 1 hour to finish.

OR, if you want, you can take the pre and post test the week before the AP exam. Your choice.

First round of multiple choice

First, copy this: SSL5924XHX

Then click on this link: Artist Practice Test
And answer the questions there.

Quiz starts: Monday, 7am
Quiz ends: Wednesday, 7am

tables

Ch. 26 #12

review

P. 512 #13, 19, 27

2 days

Wednesday (with sub):  Ch. 25 #4, 6, 10, 16

Thursday:  P. 510 #5-10, 13, 16, 19, 27

practice, practice

Ch. 25 #8, 18 + one statcrunch test or interval

matched pairs t-test

Ch. 25 #14:

a) test

b) interval

c) think!

T test

Ch. 23 #22, 25

review

Unit 5 review:  #16, add a test & #21, add an interval

review

Unit 5 Review #5, 9, 17, 29, 30, 31

Alpha

Ch. 21 #10c, 11 bc
Ch. 22 #13

2-prop

In class:  Ch. 22 #9, 11
HW:  Ch. 22 #10, 12

this weekend

Ch. 20 #24:  do the test and also find a 95% confidence interval

2 day

Yesterday:  Ch. 20 #20 and 21

Today:  add a 95% confidence interval to #20 and 21

Confidence Interval

Quiz tomorrow on chapter 19

Tonight:  Ch. 19 #11

In class:  Ch. 19 #17

probability practice

Ch. 18 #28

quiz

Practice quiz today.

Ch. 18 quiz Tuesday

CLT practice

Ch. 18 #22, 30, 31

In class:  #21cd and 24

so far this week

Mon and Tuesday:  Ch. 18 #9-13

Wed:  Ch. 18 #27ab

Thursday

Gosh, I keep posting a day late...

Unit IV review #3, 7, 11a

Wednesday

Ch. 16 #38-40

More binomials

Ch. 17 #13, 18, 20

Binomial

Ch. 17 #11, 12, 15ab
Ack! 11 and 12 are lame. What was I thinking?

Final exam review

Unit 1
Outlier rule
All the graphs
Whether or not resistant
Which stats to use for sym/skewed
Normal
Transformations affecting stats
CUSS'ing

Unit 2
LSRL: r, r^2, slope, y-int
Residuals and residual plots
SOFA
Predictions, extrapolation
Transforming data to make it linear

Unit 3
Survey biases
Survey methods
Experimental methods
Confounding
Simulations

Unit 4
Probability: problems from P. 340

Practice problems
1: Ch. 6 #1
1: P. 106 #8, 10, 11, 21, 25, 27
2: Study your old tests: tire tread, crawling, etc.. Also: Ch. 10 #1
3: Ch. 11 #11, Ch. 12 #19, Ch. 13 #29
Unit 3 worksheets

practice, practice

P. 487 #13:
Make a stem and leaf plot
Make a boxplot
Check for outliers
P. 569 #25
Make a scatterplot
Find the LSRL
Interpret the slope.

Random Variable rules

Ch. 16 #27, 33
P. 106 #8, 10

Expected Value

Ch. 16 #4-6, 17, 18, 20

Expected Value

Ch. 16 #15, 16, 21, 22

probability

Ch. 15 #9, 16, 20
Don't forget:
Bias proposal due Wednesday
Stats articles due each Friday: 
statsarticles.blogspot.com

Friday's final probability problems

We did:  Ch. 15 #3-6

Also, due for 2nd period, by next Wednesday:

Go to: statsarticles.blogspot.com

and read the article on tv and happiness and answer the questions.

today and yesterday

Ch. 14 #13, 17, 19, 21-25

Article

Go to: statsarticles.blogspot.com

And do what it says.

Due Friday.

practice, practice

Unit 3 review #23, 24, 28 and 35
test on thursday and friday

review

I passed out a 3 page review of Unit 3 today.
Due Monday.
Photograph Monday.
The free response problems are worth about 15 minutes of work and should be about one-third to one-half of a page.

experiments!

Ch. 13:
Read the first 2 pages
#1-6

More statcrunch details

Still picking a data set? Go to:
http://rchscrunch.wikispaces.com/
and see what is still available. Be aware! The page numbers may have shifted a bit.
After you pick your data set, edit the page and put your pick on the page!
That's right, it is a wiki: that means you can edit it. Click "Edit", type in your data set to claim it. Then click "Save".

I will be available this Thursday and next Tuesday in a computer lab for help.

Good luck!

chapter 12!

Ch. 12 #6,7, 11, 12
Skip "sampling frame"

last week and today

Last week we did a few more simulations:  Ch. 11 #16 and 13
Tonight:
Describe how you would take a survey to assess the motivation that students have to get a Renaissance shirt. 
How would you collect the data?
What biases would you worry about?
What is the population?

report

Statcrunch exploratory data report

Goal: To show that you understand how to make and describe various
categorical and quantitative graphs and can use those graphs to
discover relationships in a large data set.

Output: A StatCrunch report that is completed and shared/emailed with
me and our RCHS statcrunch group.

Deadlines:

October 26th, Monday: Pick your data set and report it to me.
Note: your data must come from page _____ and can be chosen from the
top/bottom half. Go to Explore—Data to find your page. If that page
does not contain sufficient data, add 35 to your page number.

November 6th, Friday, 7am: Report must be completed, an email sent to
me and shared with RCHS group.

A few details:

*Categorical/quantitative graphs are both required.
*Scatterplots are not required, but are encouraged if they are
appropriate for your data. Likewise with regression equations.
*Your goal is find relationships in the data and describe them. The
most common way to do this is to graph one variable with respect to
another (movie revenue according to rating, pulse rate by gender,
etc…) However, graphs of just a single variable may be important as
well.
*This will count as a test grade.
*I will have a tutoring day in a computer lab for tech fearful!

simulations

Ch. 11 #11

test!

Test tomorrow!
Part I:  Chapter 10
Part II:  Regression and normal

End of homecoming week

Thursday:  Ch. 10 #27; Page 204 #4, 8, 9, 37, 40
Due on Monday
Photograph on Monday

Friday:  Fix test
Monday: Final questions

Tuesday:  Test on:
Ch. 10: transformations
Linear Regression
Normal

worksheet

Today we did a worksheet on transformations.

Ch 10!

Ch. 10 #9 and 10

Review answers

a) Yes! The residual plot shows no pattern
b) 233.5: For each year that goes by we predict about 233.5 more aircraft flying.
c) 89.9% of the variation in aircraft flying is explained by regression on year.
d) Plug in 2 (not 1992!): predicted aircraft = 2939.9+233.5*2 = 3406.9 aircraft.
e) residual at 2 = 40, so the actual was 3406.9+40=3446.9 or 3447
f) sqrt(.899) = .948 = strong, positive, linear relationship between year and aircraft.
g) On average, my predicted number of aircraft misses by about 33.43
h) aircraft-hat = 2939.93 + 233.5(year)
i) we predict in 1990 that the number of aircraft flying is about 2939.9

Study hard! I hope this helps!!!

This week

WASC week!!

Monday:  P. 204 #1,2
Tuesday:  Ch. 9 #2, 4, 13, 14
Wednesday:  Practice for the test.  Regression skills, concepts and normal problems.  + a crossword!

Review

Quiz tomorrow!

Ch. 8 #35, 36

Regression practice

Ch 8 #7bcd
#28 all + (e) interpret slope
#33 all + (f) interpret r + (g) interpret r^2

residuals

Ch. 8 #7a, c, e, f & #9

slope and y-intercept

Ch. 8 #25a & c, #29a, c, e, f

Scatterplots

Ch. 7 #4, 6, 8

some review ideas, Unit 1

Outlier fences:
Q1 - 1.5IQR
Q3 + 1.5IQR

sd is always positive
(or zero if all the data is identical)

Categorical graphs:
bar and pie

Quantitative graphs:
stem and leaf (shows data)
boxplot (can hide shape)
ogive/cumulative freq
dotplot
histogram

Independent data makes bar graphs with similar levels

The mean is lower than the median for skewed left data

Measures of spread:  IQR, sd and range
Measures of center: mean and median
Which of the above are resistant?  med and IQR

Rule of thumb:  68-95-99.7

z-score formula:  (x - mu)/sigma

review for wednesday's test

Ch. 3 #22

Unit 1 review #11, 25, 29fg, 30

normal cdf

Ch. 6 #26abc and 17
Answers:
a)  Only 0.07% of tires last longer than 40,000 miles.  Not very likely!
b)  21.19% (z score is -0.8)
c)  67.31% (z scores are -0.8 and 1.2)

Tuesday night's HW

Ch. 6 #7, 11, 12
Page 113 #36
If you ever come looking for homework and I forgot post it, feel free to email me!  I check email on my phone too much, so you'll get a fast reply!

review

Both review assignments are due tomorrow!

Review and test

This week:
Monday:  Unit 1 review, page 105 #7, 16, 21, 29 a-e, 31 and 32
Tuesday:  practice, practice.  Tutoring
Wednesday:  Jeopardy?!?
Thursday:  Test (no tutoring)
Friday:  StatCrunch in the library computer lab
3-day weekend!!!

data

You can find data here:

 

http://wps.aw.com/aw_bock_statsmodworld_3/108/27677/7085352.cw/index.html

standard deviation!

Ch. 5 #5, 6, 36

Chapter 5!

#12, 14, 24, 25, 35

StatCrunch this week

Assignment 1:

• 
  
• Go to My Groups
• Click on RCHS group
• Click on the First Day of school data
• Make a graph of one or more variables on the survey
• Describe
• Print graph and description

Assignment 2:

• Find some data. Lots of it.
• You have to find data that contains both categorical and quantitative variables on the individuals.
• Go to My Data
• On the left, you'll see some options, choose the one that works.
• Make sure to Share with our group:
• If you are viewing the data in the StatCrunch, click Edit and then you can share.

• There is a cool new option that will grab data from a website
• Go to http://www.statcrunch.com/bookmarklet
• Go to that page and read about adding a bookmark called "StatcrunchThis".
• Then go to the website you want to grab.
• Click the bookmark
• Save and data and share it.

Make sure you have described your data so that everyone knows what all the variables mean.

You may do Assignment #2 with a partner IF both of you have joined the AP Stats group.

After you have done assignment #2, email me with your names, your names in StatCrunch and the name of your data set.

Assignment #1 will be checked in class on Friday.

Assignment #2 must be done by 8pm on Thursday night. Anyone who does not receive a reply email from me by 9pm on Thursday night will be considered late.

Find an interesting data set about something you care about!!!

a little more chapter 4

Ch. 4 #13, 28

data, data

Ch. 3 #20
Ch. 4 #9, 12, 17, 24
Don't forget:  if technology fails you, just make a dotplot!
Or you could try making a graph on Statcrunch!
#24 is a problem with statistics done WRONG.  You task is to figure out what is wrong.

Nada

No homework today.
If you missed class, read the TI-Tip on page 11 and learn how to put data in your calculator.  Then read (in chapter 4) how to make a histogram.

Review

Ch. 2 #8
Ch. 3 #14
In class we learned how CUSS!

independent?

Today we started looking at the very important idea of independence.
In class we did Ch. 3 #17 and 18
For homework:  Ch. 3 #15

Pie!

Ch. 2 #7

Ch. 3 #6, 8

Who?

Ch. 2 #2-6
Read Chapter 1

Day 1

Get set up at StatCrunch.com (instructions below)
Read your syllabus
Get a graphing calculator

Stat Crunch instructions

Go to:  Statcrunch.com

Click:  Subscribe

Click:  Redeem access code (under the student section!)

Accept terms and then click No

Choose a login name THAT I CAN RECOGNIZE AS YOU!

Enter password and code

Enter personal info

Now find our group and join it!

RCHS AP stats (2nd page of groups)

Then take the survey!