An infinite source queuing system has an arrival rate of 45 customers per hour and an average service time of 2 minutes per customer. The arrival rate can be described as Poisson and the service time can be described as exponential.

Suppose it has been determined that the average rate numbers of customers waiting for service is 1.929. There are two servers.

Determine the following:

a. the average number of customers being served
b. the average number of customers in the system
e. Traffic intensity