Last chapter test of the semester: Chapter 8, Thursday, December 15.
problems due Tuesday, December 13:
8.1-8.7, 8.9, 8.13, 8.10, 8.17, 8.21, 8.24, 8.32, 8.34, 8.38, 8.40
8.41, 8.42, 8.48, 8.50, 8.58
8.59, 8.60, 8.63, 8.68
They are in a funny order so you can work related problems back-to-back.
Friday, December 9, 2011
We looked at Bernoulli random variables and saw that Binomial random variables were just combinations of Bernoulli RVs. The mean (E[X]) of the binomial random variable x is np. The standard deviation is sqrt (n*p*(1-p)).
We also computed the probabilities associated with X~binom(n, p): P(x=k) = nCk * p^k * (1-p)^(n-k).
Your calculator has some functions that will calculate these probabilities for you without much trouble, but you should know how to use the formula, too.
Now, about the OLD stuff. There were still FAR too many people who refused to learn the real meaning of R-squared. You need to copy the interpretation given in class 10 times to make it stick in your memory. No more bogus answers!!! I'll start taking off 25 points out of 4.
If you are currently failing, you need to create 2-3 page chapter summaries for each chapter covered this semester (1-8) to demonstrate minimal understanding of the material and prepare for the fianl exam.
