Question: (2) (3) (3) 5. During a work slowdown the bus drivers do not show up on time to begin their scheduled bus route, but

(2) (3) (3) 5. During a work slowdown the bus drivers do not show up on time to begin their scheduled bus route, but instead show up at random times to begin driving their bus route. As before the slowdown the expected number of buses per hour ariving at a given bus stop is five. (a) What is the probability that a customer has to wait more than 20 minutes for a bus? (b) How long should the customer wait to have a 50-50 chance of a bus arriving at their stop? (c) What is the probability that exactly five buses arrive at the bus stop during any given hour?

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