A certain flight arrives on time 89 percent of the time. Suppose
148 flights are randomly...
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Statistics
A certain flight arrives on time 89 percent of the time. Suppose148 flights are randomly selected. Use the normal approximation tothe binomial to approximate the probability that
​(a) exactly 134 flights are on time.
​(b) at least 134 flights are on time.
​(c) fewer than 120 flights are on time.
​(d) between 120 and 143​, inclusive are on time.
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4.3 Ratings (908 Votes)
X Bin n p Where n 148 p 089 Mean n p 148 089 13172 Standard deviation sqrt n p 1 p sqrt 148 089 1 089 38065 Uisng normal
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