The manager of a movie theater determines that the average time moviegoers wait in line to buy

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The manager of a movie theater determines that the average time moviegoers wait in line to buy a ticket for this week’s film is 10 minutes and the average time they wait to buy popcorn is 5 minutes. Assuming that the waiting times are independent, find the probability that a moviegoer waits a total of less than 20 minutes before taking his or her seat.

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Calculus

ISBN: 9780495011606

6th Edition

Authors: James Stewart

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