In 2017, 80% of Southwest Airlines flights arrived at their destinations on time. Suppose a random sample
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In 2017, 80% of Southwest Airlines flights arrived at their destinations on time. Suppose a random sample of 12 Southwest Airlines flights was selected.
a. What is the probability that all 12 flights were on time?
b. What is the probability that more than 9 flights were on time?
c. What is the probability that 7 or fewer flights were on time?
d. What are the mean and standard deviation for this distribution?
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a b Px 9 02835 02062 00687 0558...View the full answer
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