The Riverton Police Department has eight patrol cars that arc on constant call 24 hours per day. A patrol car requires repairs every 30 days, on average, according to an exponential distribution. When a patrol ear is in need of repair it is driven into the motor pool, which has a repair- person on duty at all times. The average time required to repair a patrol car is 12 hours (exponentially distributed). Determine the average time a patrol car is not available for use and the average number of patrol cars out of service at any one time, and indicate if the repair service seems adequate.
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