What is the average time in minutes oustomers

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A barbershop with only one barber recelves an average of 20 customers per dayThe mean service time averages about 20 minutes customer. Assuming that the customer arrival follows a Poisson distribution and the service time follows an exponential distribution Answer the following questions knowing that barber works a day What is the average time in minutes oustomers spend in the barbershop?

Reference no: EM132739326

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