42. No-shows. An airline offers discounted
Chapter 15, Problem 42(choose chapter or problem)
42. No-shows. An airline offers discounted advancepurchasefares to customers who buy tickets more than30 days before travel and charges regular fares for ticketspurchased during those last 30 days. The companyhas noticed that 60% of its customers take advantage ofthe advance-purchase fares. The no-show rate amongpeople who paid regular fares is 30%, but only 5% ofcustomers with advance-purchase tickets are no-shows.a) What percent of all ticket holders are no-shows?b) Whats the probability that a customer who didntshow had an advance-purchase ticket?c) Is being a no-show independent of the type of ticket apassenger holds? Explain.
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