A queuing model that follows the M/M/1 assumptions has λ = 2 and μ = 5. What is the average number of units in the system?
A) 2/3
B) 1
C) 1.5
D) 2
E) 6

Question

Quizplus · Accepted Answer

The average number of units in the system (L) for an M/M/1 queue is given by L = λ / (μ - λ), where λ is the arrival rate and μ is the service rate. Substituting λ = 2 and μ = 5, we get L = 2 / (5 - 2) = 2 / 3.

A Queuing Model That Follows the M/M/1 Assumptions Has λ