A PERT/CPM activity has an optimistic time estimate of 4 days, a most likely time estimate of 6 days, and a pessimistic time estimate of 10 days. The expected time (in days) of this activity is:
A) 6.0
B) 6.33
C) 7.0
D) 7.5

Question

Quizplus · Accepted Answer

The formula to calculate expected time (TE) is:

TE = (Optimistic + 4xMost Likely + Pessimistic) / 6

Using the values given:

TE = (4 + 4x6 + 10) / 6 = 6.33 days

Therefore, the expected time for this activity is 6.33 days, which is closest to option B.

A PERT/CPM Activity Has an Optimistic Time Estimate of 4