The Sea View Resort Uses a Multiple-Server Queue Registration System

Short Answer

The Sea View Resort uses a multiple-server queue registration system.If the average service time is 8 minutes,there are three registration clerks,and guests arrive at the rate of one every 5 minutes,find
a. and .
b.the probability all three clerks are idle.
c.the probability a guest will have to wait.
d.the average time a customer is in line.
e.the average number of customers in line.