Answer....

Service Time (in minutes) P (X) Arrival Time (in Minutes) 2 0.1 a= 4 6 0.42 b= 8 0.27 9 0.21 Customer Arrival Random Number Interarrival Time Arrival Time Service Time Start Service Random Number Service Time Completion Time Waiting Time Time spent in System 0.54 0.2 4.8 4.8 7 0.76 2 0.43 5.72 10.52 8.28 0.47 3 0.42 5.68 16.2 8.6 he Average waiting time is: ive your answr in 2 Decimal places