In this assignment you are asked to compute the parameter values that would be of interest in a queueing system, such as utilization, waiting time, and number in system.

Use the information provided in the queueing network diagram below to compute the answers the questions below, similar to what we covered in class. Assume the system in steady$-$state. Additionally, assume that each note $($A$,$B$,$C$,$D$)$ represents a single$-$server queueing system $($M$/$M$/1).$