6.24 It has been reported that the overall graduation rate for football players at Division I-A colleges and universities is 65%. Source: “How Football Rates,” USA Today, December 20, 2005, p. 12C.

a. If five players are randomly selected from the entire population of Division I-A football players, what is the probability that at least 2 of the 5 will graduate?

b. In part (a), what is the probability that all 5 of the players will graduate?