Crucial Exams

Project Management Professional Practice Question

A project manager is using the Program Evaluation and Review Technique (PERT) to develop a schedule for a complex project with high uncertainty. As part of this process, they need to calculate the variance for a specific activity to understand its potential risk. The formula for an activity's variance is the square of the standard deviation. Which formula correctly represents the standard deviation component of this calculation?

  • (Pessimistic - Optimistic) / 3

  • (Pessimistic + 4*Most Likely + Optimistic) / 6

  • (Pessimistic - Optimistic) / 6

  • (Most Likely - Optimistic) / 6

Project Management Professional
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