According to flightstats.com, American Airlines flights from Dallas to Chicago are on time 80% of the time.
Question:
(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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a We have n 100 and p 080 X n p 100080 80flights b We expect that in a random sample of 100 flights ...View the full answer
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