Free PMI Project Management Professional (PMP) Practice Question

The correct answer is 7 days. In PERT, the expected duration (TE) is calculated using the formula: TE = (Optimistic + 4 x Most Likely + Pessimistic) / 6. Substituting the given values into this formula:

TE = (4 + 4 x 6 + 14) / 6 TE = (4 + 24 + 14) / 6 TE = 42 / 6 TE = 7 days

This weighted average gives more importance to the most likely estimate while considering the optimistic and pessimistic scenarios. It provides a more realistic estimate of the activity duration, taking into account potential uncertainties and risks.