Answer:
Please find the Gantt chart in the attachment file.
Explanation:
Given:
[tex]\to P_0 = 3\\\\\to P_1 = 4\\\\\to P_2 = 2\\\\\to P_3 = 1[/tex]
Calculating the average waiting time:
[tex]\to\frac{bust\ time}{ total\ process}[/tex]
[tex]= \frac{3+4+2+1}{4}\\\\= \frac{10}{4}\\\\= 2.5[/tex]
And the chart is defined in the attached file please find it.
