In project management, PERT (program evaluation and review technique) ______.
a. uses a weighted average of optimistic, pessimistic, and most likely estimates to calculate the expected duration for an activity
b. uses a deterministic approach to calculate the expected duration for an activity
c. use a simple average of optimistic, pessimistic, and most likely estimate to calculate the expected duration for an activity
d. uses a most likely estimate to calculate the expected duration for an activity
a. uses a weighted average of optimistic, pessimistic, and most likely estimates to calculate the expected duration for an activity
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