A B C Arrival Rate 1.94 3.99 4.76 Service Rate 1.57 1.66 1.46 # of Servers 3 4 4 Utilization 41.19 60.09 81.51 P(0), probability that the system is empty 0.28 0.08 0.02 Lq, expected queue length 0.11 0.43 2.75 L, expected number in system 1.34 2.84 6.01 Wq, expected time in queue 0.05 0.11 0.58 W, expected total time in system 0.69 0.71 1.26 Probability that a customer waits 0.15 0.29 0.62 Number of Added Servers 1 1 2