In a single server Poisson arrival general service system, with server utilization less than 1 , the average number in the system goes up as the variance of service time goes down.

Question

Quizplus · Accepted Answer

In a single server system with Poisson arrivals, as the variance of service time decreases (making service times more consistent), the system becomes more efficient, leading to a decrease in the average number of customers in the system, assuming server utilization is kept constant and less than 1.

In a Single Server Poisson Arrival General Service System, with Server