The average length of time that a customer waits in line for service is where y is the average arrival rate, written as the number of customers per unit of time, and x is the average service rate, written in the same units. Evaluate . Note: x and y are given as the number of customers per hour.
A) 7 min
B) 5 min
C) 3 min
D) 4 min
E) 6 min

Question

The average length of time that a customer waits in line for service is  where y is the average arrival rate, written as the number of customers per unit of time, and x is the average service rate, written in the same units. Evaluate  . Note: x and y are given as the number of customers per hour.
A) 7 min 
B) 5 min 
C) 3 min 
D) 4 min 
E) 6 min

Quizplus · Accepted Answer

The Answer of The average length of time that a customer waits in line for service is  where y is the average arrival rate, written as the number of customers per unit of time, and x is the average service rate, written in the same units. Evaluate  . Note: x and y are given as the number of customers per hour.
A) 7 min 
B) 5 min 
C) 3 min 
D) 4 min 
E) 6 min

The Average Length of Time That a Customer Waits in Line