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Topics: Cost Management, PMI Standards, Schedule Management
Triangular or Beta Formula. Which estimation formula to use?
Network:10



How would you answer this question on the PMP exam only given the following information?

If the most likely duration of an activity is five weeks, the best-case duration is two weeks, and the worst-case duration is 14 weeks, how many weeks is the expected duration of the activity?

a. 4
b. 5
c. 6
d. 7


Trying to understand which PMI prefers when the formula to use is not provided. I missed this question on a practice exam and would like to avoid doing this on the real exam.

There are 2 possible correct answers, 6 if using beta, 7 if using triangular.
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Network:2268



If it is not specified, use the PERT formula (O + 4(M) + P / 6. So the answer would be c
Network:801



Dinah's right - a PERT, beta distribution or weighted average should be the default choice unless they specify the triangular distribution in the body of the question.

Kiron
Network:10



Thanks! Much appreciated!
Network:94987



Dinah's your new RMP in application :-)

For the triangular, if i remember well it use when talking about software project in the context of the PMP exam.

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