A certain flight arrives on time 83 percent of the time. Suppose 175 flights are randomly selected. Use the normal approximation to the binomial to approximate the probability that (a) exactly 149...

A certain flight arrives on time 83 percent of the time. Suppose 175
flights are randomly selected. Use the normal approximation to the binomial to approximate the probability that

(a) exactly 149 flights are on time.

(b) at least 149 flights are on time.