Question $2$ options:

Pic

TIMES $($days$)$

Activity

Start Node

Finish Node

OPTIMISTIC

to

MOST LIKELY

tm

PESSIMISTIC

tp

A

$1$

$2$

$23$

$32$

$59$

B

$1$

$3$

$15$

$18$

$27$

C

$2$

$5$

$19$

$31$

$67$

D

$3$

$4$

$28$

$46$

$64$

E

$4$

$5$

$15$

$42$

$69$

Given the Activity on Arrow Diagram and the data found in the table above, calculate each of the following values:

Activity A$.........$te $=35$

Standard Deviation $=6$

Activity B$.........$te $=$

Standard Deviation $=$

Activity C$.........$te $=$

Standard Deviation $=$

Activity D$.........$te $=$

Standard Deviation $=$

Activity E$.........$te $=$

Standard Deviation $=9$

Path $125$

Mean Time $=$

Standard Deviation $=10$

Path $1345$

Mean Time $=$

Standard Deviation $=$