1) Suppose that the processes arrive in the order: P2, P1, P4, P3. Process P₁ P₂ P3 P4 Burst Time 12 6 6 12 A. What is the average waiting time under First Come, First Served (FCFS) B. What is the average waiting time under Shortest Job First (SJF)

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Answer the given question with a proper explanation and step-by-step solution.

 please show step by step I got 13.5 and 10.5 for average time waiting. 

Exercise 6:
Name:
1) Suppose that the processes arrive in the order: P2, P1, P4, P3.
Process
P₁
P₂
P3
P4
Burst Time
12
6
6
12
A. What is the average waiting time under First Come, First Served (FCFS)
B. What is the average waiting time under Shortest Job First (SJF)
Transcribed Image Text:Exercise 6: Name: 1) Suppose that the processes arrive in the order: P2, P1, P4, P3. Process P₁ P₂ P3 P4 Burst Time 12 6 6 12 A. What is the average waiting time under First Come, First Served (FCFS) B. What is the average waiting time under Shortest Job First (SJF)
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