A certain flight arrives on time 85 percent of the time. Suppose 112 flights are randomly selected. Use the normal approximation to the binomial to approximate the probability that (a) exactly 103 flights are on time. (b) at least 103 flights are on time. (c) fewer than 95 flights are on time. (d) between 95 and 102, inclusive are on time.
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85 = 95.2 σ = sqrt(n * p * (1 - p)) = sqrt(112 * 0.85 * 0.15) = 3.779 Show more…
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