Assuming the number of arrivals per time period is Poisson distributed with a mean arrival rate of 3 customers per hour, determine the mean interarrival time.
A) 20 minutes
B) 3 minutes
C) 60 minutes
D) 12 minutes

Question

Quizplus · Accepted Answer

The mean interarrival time is the reciprocal of the arrival rate. With a mean arrival rate of 3 customers per hour, the mean interarrival time is 1/3 hours, which is 20 minutes.

Assuming the Number of Arrivals Per Time Period Is Poisson