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PMI Project Management Professional Practice Question

A project manager is estimating the duration of a task with the following data: Optimistic time = 8 days, Most Likely time = 12 days, and Pessimistic time = 20 days. The Expected Duration (TE) of the task is 15 days.

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Answer Description

The Expected Duration (TE) formula is used to estimate the time required to complete a task using three different time estimates: Optimistic, Most Likely, and Pessimistic. The formula is TE = (Optimistic + 4 x Most Likely + Pessimistic) / 6. By substituting the given values, TE = (8 + 4 x 12 + 20) / 6 = (8 + 48 + 20) / 6 = 76 / 6 ≈ 12.67 days, not 15 days.

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