In: Statistics and Probability
A certain flight arrives on time 89 percent of the time. Suppose 112 flights are randomly selected. Use the normal approximation to the binomial to approximate the probability that
(a) exactly 91 flights are on time.
(b) at least 91 flights are on time.
(c) fewer than 104 flights are on time.
(d) between 104 and 109, inclusive are on time.