The Sea View resort uses a multiple channel..

The Sea View Resort uses a multiple-channel queue registrationsystem. 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. λ and μ.
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.