Project Management Central

Triangular or Beta Formula. Which estimation formula to use?
 Network:11
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:2636
If it is not specified, use the PERT formula (O + 4(M) + P / 6. So the answer would be c
 Network:1160
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:11
Thanks! Much appreciated!
 Network:107807
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.