Thursday HW: STUDY!

EXTRA CREDIT OPPORTUNITY: This is very short notice and I apologize, but tomorrow I'll be heading to the underclassmen math classes to promote the wonderful world of AP mathematics at our school. If you remember when I came to your class, I had some letters written by current students for incoming students.

You can earn some test points for tomorrow (+5) if you write a letter to incoming students (for Stats and Calc next year), the only issue is it must be emailed to me tonight. The letter should be 1/2 to a full page (max). Simply talk about your feelings on AP Statistics--would you recommend it? Is it interesting? How's the teacher? How hard is the course and how much work is it? Is it a lot different than your previous math classes? Do you think this will better prepare you for college? What are some advantages of taking AP in general? Please be honest--don't only say good things, mention any fallbacks as well.

Calculus students--I could use some Calc letters as well, so feel free to write about Calculus rather than Stat (I'll still give you extra credit), or a combination of the two.


I've attached some questions below for you to check out--work on these and prepare yourself for tomorrow's test!

Page 384 # 35, 38, 40, 16, 18, 6
Key:
6.) b. mean = 3.44, c. mean = 17.20

16.) a. mean=2.25 b. SD=1.26

18.) b. mean=89 c. SD=260.54

38.) a. mean=37.6, SD=3.7 b. z = -2.07, prob = 0.019

40.) a. Profit = 120B+150D-200 b. mean =928, SD=187.45 d. Independence must be assumed

Page 402: #4, 7, 36, 37
Key:
4.) mean = 100, SD = 9.95; check success/fail, bernoilli trials, 10% condition; since this is nearly 10 SD above the mean the probability is essentially zero

36.) a. 0.5929 b. 0.4071 c. 0.0529 d. 0.0025