TAKE HOME TEST DUE WEDS. 2/17!

Happy February Break!

Over break, be sure to complete your "Unit 3: Methods of Data Collection" take home test! This test is worth more points than any you've taken this year--you are expected to take your time, use your notes, and use your textbooks (chapters 11, 12, 13) to complete this test! I will be tough in grading it, because you have a lot of time and a variety of resources to use! If, for some reason, this is late, you will lose 10 points for each day it's late.

Remember, for chapter 13, experiments, you will have to teach yourself much of the content--use your textbook, use some of the links on the right, watch some videos--be responsible! Be "AP"! Step up and rise to the challenge!

The take home test is uploaded under our "Resources: Powerpoints, Assignments..." link on the right, in case you need (another) copy.

Here are the links to the answer keys/scoring rubrics for the blocking problems we did in class yesterday:

2004 Scoring Rubric (Shampoo)

2001 Scoring Rubric (Forest)


Also, remember that when you return we will have our Unit 3 Vocab Test (chapters 11, 12, 13) on Thursday, 2/18. Start studying now!

Good luck on your take home test! And enjoy your break! Rest up, relax, and come back recharged for some hard work--this is our last big stretch before the AP exam, and we're going to learn lots of interesting, awesome, and very important stuff! See you there!

When we return we will start some "new stuff," with chapter 18: sampling distributions! The math we start to do when we return is based on the Normal model--so, if you review your chapter 6 notes you'll be better prepared when we return! We'll be doing lots of z-scores and normalcdf( stuff again!

For example, this will be our stamp problem when we come back--if you want to get ahead, do some review and do this over break! (= extra stamp if done). It's all based on chapter 6 (zscores, Normal model):

Statistics from Cornell's Northeast Regional Climate Center indicate that Ithaca, NY gets an average of 35.4 inches or rain each year, with a standard deviation of 4.2 inches. Rainfall amounts can be described by a Normal model.

a.)   During what % of years does Ithaca get more than 40 inches of rain?

b.)   During what proportion (%) of years does Ithaca get between 30 and 40 inches of rain?

c.)    What amount of rainfall marks the 90th percentile? (Or, in other words, what amount of rainfall cuts off the top 10% of rainfall amounts)?