A Single-Server Waiting Line System Has an Arrival Pattern Characterized

Multiple Choice

A single-server waiting line system has an arrival pattern characterized by a Poisson distribution with 3 customers per hour. The average service time is 12 minutes. The service times are distributed according to the negative exponential distribution.
-The expected number of customers in the waiting line is:

A) .6
B) .7
C) .8
D) .9