Consider the following processes with burst times and arrival times

Process ID

Arrival time

$0$

$1$

A

B

C

$2$

D

E

$3$

$4$

Burst time

$4$

$5$

$1$

$2$

$4$

Which CPU scheduling algorithm has the average waiting time of $3\mathrm{.}2$ and average turnaround time of $647$