According to flightstats.com, American Airlines flights from Dallas to Chicago are on time 80% of the time.

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According to flightstats.com, American Airlines flights from Dallas to Chicago are on time 80% of the time. Suppose 100 flights are randomly selected.
(a) Compute the mean and standard deviation of the random variable X, the number of on-time flights in 100 trials of the probability experiment.
(b) Interpret the mean.
(c) Would it be unusual to observe 75 on-time flights in a random sample of 100 flights from Dallas to Chicago? Why?
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Fundamentals Of Statistics

ISBN: 9780321844606

4th Edition

Authors: Michael Sullivan III

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