Employees arrive at a cafeteria according to a Poisson process at an average rate of 30 employees per hour.The average waiting time between employees' arrivals is _________ minutes.
A)0.03
B)0.05
C)0.5
D)1
E)2

Question

Quizplus · Accepted Answer

2The average waiting time between arrivals in a Poisson process is the inverse of the average rate of arrival. Since the rate is 30 employees per hour, the average waiting time is 1/30 hours. Converting hours to minutes (1 hour = 60 minutes), we get (1/30) * 60 = 2 minutes.

Employees Arrive at a Cafeteria According to a Poisson Process