An activity has an optimistic time of 16, a most likely time of 25, and a pessimistic time of 40. What is the variance for the activity?
A) 15 − 20
B) 20.01 − 25
C) 25.01 − 30
D) 30.01 − 35
E) Over 35

Question

Quizplus · Accepted Answer

The variance for an activity in PERT is calculated using the formula: ((pessimistic time - optimistic time) / 6)^2. Here, it is ((40 - 16) / 6)^2 = (24 / 6)^2 = 4^2 = 16, which falls in the range of 15 - 20.

An Activity Has an Optimistic Time of 16, a Most