PERT Calculator

Three-Point Estimating for PMP & CAPM Exam Prep

O (Optimistic)Best-case scenario duration/costM (Most Likely)Most probable duration/costP (Pessimistic)Worst-case scenario duration/cost

Exam Tip

On the PMP exam, PERT questions typically ask for the expected estimate (t_E) or the range at a given confidence level. Remember the formula: t_E = (O + 4M + P) / 6. Standard deviation is (P - O) / 6.

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