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Cars arrive at Speedy Lube at an average rate of 4 per hour.Arrivals can be assumed to follow the Poisson distribution.The sole mechanic who works at Speedy Lube spends an average of 12 minutes changing each car's oil and filter.The standard deviation of service time is 2 minutes and service time distribution is arbitrary.
-Refer to the information above.Calculate the operating characteristics of the queuing system at Speedy Lube.What is the probability that an arriving customer will have to wait for service?

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Cars arrive at Speedy Lube at an average rate of 4 per hour.Arrivals can be assumed to follow the Poisson distribution.The sole mechanic who works at Speedy Lube spends an average of 12 minutes changing each car's oil and filter.The standard deviation of service time is 2 minutes and service time distribution is arbitrary.
-Refer to the information above.Calculate the operating characteristics of the queuing system at Speedy Lube.What is the probability that an arriving customer will have to wait for service?

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