An activity on a PERT network has these time estimates: optimistic = 1, most likely = 2, and pessimistic = 5. What is its expected activity time?
A) 2.00
B) 2.33
C) 2.67
D) 4.67
E) 14.00

Question

Quizplus · Accepted Answer

Using the formula for expected time, which is:
Expected Time = (optimistic + 4 * most likely + pessimistic) / 6
Expected Time = (1 + 4 * 2 + 5) / 6
Expected Time = 2.33 (rounded to two decimal places)
Therefore, the best choice is B.

An Activity on a PERT Network Has These Time Estimates