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!