A certain flight arrives on time 87 percent of the time. Suppose 149 flights are randomly selected.

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A certain flight arrives on time 87 percent of the time. Suppose 149 flights are randomly selected. Use the normal approximation to the binomial to approximate the probability that

(a) exactly 127 flights are on time.

(b) at least 127 flights are on time.

(c) fewer than 134 flights are on time.

(d) between 134 and 142, inclusive are on time.

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