At a certain airport, 75% of the flights arrive on time. A sample of 10 flights is
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At a certain airport, 75% of the flights arrive on time. A sample of 10 flights is studied.
a. Find the probability that all 10 of the flights were on time.
b. Find the probability that exactly eight of the flights were on time.
c. Find the probability that eight or more of the flights were on time.
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