Sample PMP Question: November 2015


If your expected value is 110 and the standard deviation is 12, which of the following is true?

A. There is approximately a 99% chance of completing this activity between 86 and 134 days.
B. There is approximately a 95% chance of completing this activity between 98 and 122 days.
C. There is approximately a 75% chance of completing this activity between 86 and 134 days
D. There is approximately a 68% chance of completing this activity between 98 and 122 days

D-  68% probability is calculated using plus or minus one standard deviation, a 95% probability uses plus or minus two standards deviations, and 99% probability uses plus or minus three standard deviations.

 

Based on question data supplied by: 1000 Challenge PMP Questions
Author: Mohit Arora
Available now at amazon.com

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