Friday, April 30, 2010

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

Tuesday, April 27, 2010

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

Friday, April 23, 2010

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.

Thursday, April 22, 2010

more inference

L-6
O-2

Wednesday, April 21, 2010

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

Tuesday, April 20, 2010

Name it!

We discussed C-3.

We named the first 12 tests in your folder.

Monday, April 19, 2010

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

Friday, April 16, 2010

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, April 14, 2010

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

Tuesday, April 13, 2010

Monday: expected value

E-2
I-5
J-4

Monday, April 12, 2010

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

Friday, April 09, 2010

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

Wednesday, April 07, 2010

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

Tuesday, April 06, 2010

More exploring data

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

Don't forget MC #4 tonight also!

Monday, April 05, 2010

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

Friday, April 02, 2010

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, April 01, 2010

Thursday

E-6
I-1

Wednesday, March 31, 2010

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

Tuesday, March 30, 2010

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

Sunday, March 28, 2010

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

Monday, March 15, 2010

tables

Ch. 26 #12

Monday, March 08, 2010

review

P. 512 #13, 19, 27

Thursday, March 04, 2010

2 days

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

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

Tuesday, March 02, 2010

practice, practice

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

Monday, March 01, 2010

matched pairs t-test

Ch. 25 #14:
a) test
b) interval
c) think!

Tuesday, February 23, 2010

T test

Ch. 23 #22, 25

Tuesday, February 16, 2010

review

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

Thursday, February 11, 2010

review

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

Monday, February 08, 2010

Alpha

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

Thursday, February 04, 2010

2-prop

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

Saturday, January 30, 2010

this weekend

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

Thursday, January 28, 2010

2 day

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

Monday, January 25, 2010

Confidence Interval

Quiz tomorrow on chapter 19
Tonight:  Ch. 19 #11
In class:  Ch. 19 #17

Tuesday, January 19, 2010

probability practice

Ch. 18 #28

Friday, January 15, 2010

quiz

Practice quiz today.
Ch. 18 quiz Tuesday

Thursday, January 14, 2010

CLT practice

Ch. 18 #22, 30, 31
In class:  #21cd and 24

Wednesday, January 13, 2010

so far this week

Mon and Tuesday:  Ch. 18 #9-13
Wed:  Ch. 18 #27ab

Friday, January 08, 2010

Thursday

Gosh, I keep posting a day late...
Unit IV review #3, 7, 11a

Thursday, January 07, 2010

Wednesday

Ch. 16 #38-40

Tuesday, January 05, 2010

More binomials

Ch. 17 #13, 18, 20

Monday, January 04, 2010

Binomial

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

Thursday, December 10, 2009

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

Wednesday, December 09, 2009

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.

Monday, December 07, 2009

Random Variable rules

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

Thursday, December 03, 2009

Expected Value

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

Wednesday, December 02, 2009

Expected Value

Ch. 16 #15, 16, 21, 22

Monday, November 30, 2009

probability

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

Saturday, November 21, 2009

Friday's final probability problems

We did:  Ch. 15 #3-6
Also, due for 2nd period, by next Wednesday:
and read the article on tv and happiness and answer the questions.

Wednesday, November 18, 2009

today and yesterday

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

Monday, November 16, 2009

Article

Go to: statsarticles.blogspot.com
And do what it says.
Due Friday.

Tuesday, November 10, 2009

practice, practice

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

Wednesday, November 04, 2009

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.

Monday, November 02, 2009

experiments!

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

Tuesday, October 27, 2009

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"

Monday, October 26, 2009

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?

Wednesday, October 21, 2009

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

Monday, October 19, 2009

test!

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

Thursday, October 15, 2009

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

Wednesday, October 14, 2009

worksheet

Today we did a worksheet on transformations.

Tuesday, October 13, 2009

Ch 10!

Ch. 10 #9 and 10

Wednesday, October 07, 2009

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!!!

Tuesday, October 06, 2009

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!

Monday, September 28, 2009

Review

Quiz tomorrow!
Ch. 8 #35, 36

Thursday, September 24, 2009

Regression practice

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

Tuesday, September 22, 2009

residuals

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

Monday, September 21, 2009

slope and y-intercept

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

Thursday, September 17, 2009

Scatterplots

Ch. 7 #4, 6, 8

Tuesday, September 15, 2009

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

Monday, September 14, 2009

review for wednesday's test

Ch. 3 #22
Unit 1 review #11, 25, 29fg, 30

Wednesday, September 09, 2009

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!

Tuesday, September 01, 2009

review

Both review assignments are due tomorrow!

Monday, August 31, 2009

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!!!

Thursday, August 27, 2009

Wednesday, August 26, 2009

standard deviation!

Ch. 5 #5, 6, 36

Tuesday, August 25, 2009

Chapter 5!

#12, 14, 24, 25, 35

Sunday, August 23, 2009

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!!!

Thursday, August 20, 2009

a little more chapter 4

Ch. 4 #13, 28

Wednesday, August 19, 2009

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.

Tuesday, August 18, 2009

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.

Monday, August 17, 2009

Review

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

Thursday, August 13, 2009

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

Wednesday, August 12, 2009

Pie!

Ch. 2 #7
Ch. 3 #6, 8

Tuesday, August 11, 2009

Who?

Ch. 2 #2-6
Read Chapter 1

Monday, August 10, 2009

Day 1

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

Saturday, August 08, 2009

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!

Thursday, May 07, 2009

Competition Information

Information about the Southern California stats event at City of Hope can be found at:

The national ASA information is at:

Friday, May 01, 2009

resources

I had this nifty packet at the Friday review, but I didn't let you take it home.  If you want a copy, you can find here:

If you want the answers to the '02 or '07 MC, email me.

Last weekend!

If you're feeling stuck or frustrated, feel free to email me:
mrmathman@gmail.com

You guys are going to do great!
Mr. D