An airline has one employee work the counter.A customer arrives on the average of once every 3 minutes,and it takes on average 2 minutes to process the transaction.What is the probability that a customer must wait for service in the queue?
A) 0%
B) 33%
C) 66%
D) 100%

Question

Quizplus · Accepted Answer

The arrival rate (λ) is 1 customer every 3 minutes, or 1/3 per minute. The service rate (μ) is 1 customer every 2 minutes, or 1/2 per minute. The traffic intensity (ρ) is λ/μ = (1/3) / (1/2) = 2/3 or 66%. This is the probability that a customer must wait.

An Airline Has One Employee Work the Counter