Preparing Practice Exam…
Please wait a moment while the system generates the exam questions, answers, and study session.
Please wait a moment while the system generates the exam questions, answers, and study session.
Question 32 of 52
Free Preview · 52 of 172 · questions 1–52 of 172 are free. Sign up free to sync your progress across devices.
Select one answer.
Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.
- The PERT formula calculates the expected (mean) duration as (O + 4M + P) / 6, where O is the optimistic estimate, M is the most likely estimate, and P is the pessimistic estimate. The formula weights the most likely estimate four times more than the extreme estimates, producing a beta distribution. The standard deviation is calculated as (P - O) / 6. PERT is used when activity durations are uncertain and helps quantify schedule risk.