A fast food restaurant has customers arrive at the checkout counter at a rate of 25 customers per hour. The average service time at the till is 80 seconds.
a) What is the utilization?
b) What is probability that there are zero customers at the counter (either in line or being served)?
c) What is the probability that there are two or more customers at the checkout counter?
d) What is the probability that there are 1 or 2 customers at the counter?
e) What is the average number of customers waiting in line?

Answer rating: 100% (QA)

In this case the arrival rate 25 and service rate 606080 45 a Utilization is given as the ratio of a... View the full answer