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 13 days or less?
A)50 percent
B)33 percent
C)75 percent
D)84 percent

Question

Quizplus · Accepted Answer

To find the probability of completing the project in 13 days or less, we need to find the area under the normal distribution curve from 0 to 13 days.

We can calculate the z-score for 13 days as follows:

z = (13 - 10) / 3 = 1

Using a standard normal distribution table or calculator, we can find that the area under the curve for z = 1 is approximately 0.8413.

Therefore, the probability of completing the project in 13 days or less is about 84 percent (or 0.8413).

Therefore, the correct answer is D.

If a Project Path Has an Expected Duration of 10