|Que.||Consider the following table of arrival time and burst time for three processes P0, P1 and P2.
Process Arrival time Burst Time
P0 : 0 ms 9 ms
P1 : 1 ms 4 ms
P2 : 2 ms 9 ms
The pre-emptive shortest job first scheduling algorithm is used. Scheduling is carried out only at arrival or completion of processes. What is the average waiting time for the three processes?