If a project path has an expected duration of 10 days and a standard deviation of 3 days, what is the probability that the path will be completed in 10 days or less?
A)0 percent
B)33 percent
C)50 percent
D)75 percent

Question

Quizplus · Accepted Answer

To find the probability that the path will be completed in 10 days or less, we need to calculate the z-score and look it up in the standard normal distribution table.

z-score = (10 - expected duration)/standard deviation 
z-score = (10-10)/3 = 0

Looking up the z-score of 0 in the standard normal distribution table, we find that the probability of completing the path in 10 days or less is 0.5 or 50%. Therefore, the answer is C) 50 percent.

If a Project Path Has an Expected Duration of 10