4. Draw the Gantt chart and calculate average waiting time using Round Robin scheduler. The time quantum is 4. Use the following table. 6 5. Draw the Gantt chart and calculate average waiting time using Priority scheduling. Use the same table. 6 Use this table for both Q4 and 25. Priority 5 4 Process P1 P2 P3 P4 P5 Arrival Time 0 6 12 19 25 Burst time 7 9 12 1 6 7 2 3