1. Evaluate the following: a) 0! = b) 1! = c) C(12, 12) = d) C(12, 2) = e) C(4, 3) = f) C(8, 4) =

2. In October 2009, 70% of 2009 high school graduates were enrolled in college, according to a Bureau of Labor Statistics Survey. Given a random sample of 14 high school graduates, what is the chance that a) exactly 12 are in college? b) 12 or more are in college? c) none is in college? d) at least one is in college? e) Find the mean (or expected number) and standard deviation.

3. A bad contains 3 black balls (B) and 5 white balls (W). Paul picks a ball at random from the bag and places it back in the bag. He mixes the balls in the bag and then picks another ball at random from the bag. a) Construct a probability tree of the problem. b) Calculate the probability that Paul picks: i) two black balls ii) a black ball in his second draw