Question: 2. (4 points) Three jobs, each 10 seconds long, arrive at time 0 and are excuted sequentially on a single CPU. They complete execution at

2. (4 points) Three jobs, each 10 seconds long, arrive at time 0 and are excuted sequentially on a single CPU. They complete execution at time 30. What is the average wait time for these three jobs? Assume non-preemptive scheduling. (2 points) T/F: First-come, first-served job scheduling policies optimize the average wait time

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