MATH 251, P&S I, Fall 2007,Fri. Oct. 19, Day 24..

Reread rest of 4.4 if needed. Read Sec. 5.1. (Note, p. 334)  First I will cover pp. 334-41, then mean and s.d. pp. 340-1, then  the binomial formula pp. 348-50, Memorize the binomial formula and the mean and s.d. for a binomial distribution. Then pp. 341-347 (proportions and normal approx.)  Skip "continuity correction" pp 347-48.
QUIZ next week sometime:  Computing mean and s.d., using algebra of means and variances (pp.298, 300)
Hand in:

Possibly?if presentations are short NO.
5.9a  Random digits as binomial  (Note, P("at least one") = 1 - P("none")--check it out on a list of possibilities for X)
5.3 proofreading again.
5.7  "P(X > m) no larger than .05" means "P(X > m) < .05"
A)  You simulated flipping a coin with P(Heads) = .2, 20 times.  This was B(20, .2).  Using Table C, sketch the probability histogram for B(20, .2). 
You also simulated flipping a coin with P(Heads) = .6, 20 times.  This was B(20, .6).  Table C doesn't have .6.  Make a table column for B(20, .6) by exchanging the role of success and failure, and using Table C. Sketch the probability histogram for B(20, .6). 

 Read, discuss 
4.81, 4.82 insurance		 Optional 
4.85 more portfolio.
 

Project Presentations: 
 Courtney DeFord and Kelly Shepardson
Jessica Sterling and Karin Gepp
Katherine Rockstroh and Emily Rice
Jamie-Leigh Csizmar and Aimee Raymond
Remaining time?
My notes on projects (what I didn't say last time either!)   Notes
Homework questions? Day 22 Day 23

Continue Sec. 5.1 Counts and proportions (Binomial distribution) Details Day 23

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