Task X has a most likely duration of 10 days,a best-case duration of 8 days,and a worst-case duration of 15 days.What is the probability that it will be completed in 10 days or less?
A)0 percent
B)50.0 percent
C)33.4 percent
D)83.4 percent

Question

Quizplus · Accepted Answer

The probability of completing the task in 10 days or less can be calculated using the PERT formula for the expected duration and standard deviation. The expected duration is (8 + 4*10 + 15)/6 = 10.17 days, and the standard deviation is (15-8)/6 = 1.17 days. Using the normal distribution, the probability of completing in 10 days or less is approximately 33.4 percent.

Task X Has a Most Likely Duration of 10 Days,a