In Monte Carlo scheduling, what does P75 represent?

In Monte Carlo scheduling, what does P75 represent?

• A. The date by which 75% of simulation runs are completed
• B. The earliest date of all simulations
• C. The average date across simulations
• D. The latest date of all simulations

Answer: (A)

In Monte Carlo scheduling, you run many simulations to capture uncertainty in activity durations and build a spread of possible project finish dates. P75 is the 75th percentile of that distribution, meaning the date by which 75% of the simulation runs have finished. This gives you a finish date you can expect to meet with 75% probability, assuming the model is accurate. It’s not the earliest date (minimum across runs), not the latest date (maximum across runs), and not the average date (mean). So the date by which 75% of simulation runs are completed reflects the 75th percentile of the finish-date distribution.

In Monte Carlo scheduling, you run many simulations to capture uncertainty in activity durations and build a spread of possible project finish dates. P75 is the 75th percentile of that distribution, meaning the date by which 75% of the simulation runs have finished. This gives you a finish date you can expect to meet with 75% probability, assuming the model is accurate. It’s not the earliest date (minimum across runs), not the latest date (maximum across runs), and not the average date (mean). So the date by which 75% of simulation runs are completed reflects the 75th percentile of the finish-date distribution.