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In February, a major airline had 77.4% of their flights arrive on time. Assume that the event that a given flight arrives on time is independent of the event that another flight arrives on time a. A writer plans to take three separate flights for her publisher next month. Assuming the airline has the same on-time performance as in February, what is the probability that all three flights arrive on time? b. Discuss how realistic it is to assume that the on-time arrivals of the different flights are independent. a. The probability is (Simplify your answer. Round to four decimal places as needed.)