Three-Point Estimate
Compare a triangular mean with a PERT expected value.
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How the means differ
Triangular mean£110,000.00
PERT expected value£105,000.00
The PERT calculation gives the most likely cost four times the weight of either extreme
Triangular meanPERT expected value
Calculation method and assumptions
Triangular = (O + M + P) ÷ 3; PERT = (O + 4M + P) ÷ 6PERT places more weight on the most likely outcome. Neither mean is a confidence percentile or a complete risk analysis.
Currency changes labels only. No exchange conversion is applied
Related exercisePractise this calculation