Mathematics, 07.03.2020 04:30, asenath6636
An article reported that what airline passengers like to do most on long flights is rest or sleep; in a survey of 3697 passengers, almost 80% did so. Suppose that for a particular route the actual percentage is exactly 80%, and consider randomly selecting nine passengers. Then x, the number among the selected nine who rested or slept, is a binomial random variable with n = 9 and p = 0.8. (Round your answers to four decimal places.)
(a) Calculate p(6).
p(6) =
Interpret this probability.
This is the probability that exactly 6 out of 10 selected passengers rested or slept. This is the probability that at least 6 out of 9 selected passengers rested or slept. This is the probability that at least 6 out of 10 selected passengers rested or slept. This is the probability that exactly 6 out of 9 selected passengers rested or slept.
(b) Calculate p(9), the probability that all nine selected passengers rested or slept.
p(9) =
(c) Determine P(x ≥ 6).
P(x ≥ 6) =
Answers: 2
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An article reported that what airline passengers like to do most on long flights is rest or sleep; i...
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