An activity on a PERT network has these time estimates: optimistic = 1, most likely = 2, and pessimistic = 5. Its expected time is
A) 2.00.
B) 2.33.
C) 2.67.
D) 8.00.
E) 23.3.

Question

Quizplus · Accepted Answer

The expected time (TE) can be calculated using the formula:
TE = (optimistic + 4 x most likely + pessimistic)/6

TE = (1 + 4(2) + 5)/6
TE = 2.33 (rounded to two decimal places)

Therefore, the best choice is B.

An Activity on a PERT Network Has These Time Estimates