Question: A self - checkout line with one register operates with 8 0 % utilization. The coefficient of variation for the service process is 2 and

A self-checkout line with one register operates with 80% utilization. The coefficient of variation for the service process is 2 and the coefficient of variation of the arrival process is 1. The average processing time is 3 minutes. Remember, utilization = p / a.
How many people are waiting in line on average (Iq = Tq / a)?

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