The Exponential Distribution · Try It 2
The number of days ahead travelers purchase their airline tickets can be modeled by an exponential distribution with the average amount of time equal to 15 days. Find the probability that a traveler will purchase a ticket fewer than ten days in advance. How many days do half of all travelers wait?
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OpenStax, Introductory Statistics 2e · §5.3 The Exponential Distribution · Try It 2
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