Question: The main difference between PERT and CPM is that Group of answer choices PERT is more accurate than CPM PERT assumes that activity durations are

The main difference between PERT and CPM is that

Group of answer choices

PERT is more accurate than CPM

PERT assumes that activity durations are known

CPM assumes that activity durations can vary

None

A project being analyzed by PERT has 60 activities, 13 of which are on the critical path. If the estimated time along the critical path is 214 days with a project variance of 100, the probability that the project will take 234 days or more to complete is

0.02275

0.97725

0.1587

0.8413

An activity on a PERT network has these time estimates: optimistic = 2, most likely = 5, and pessimistic = 11. Its expected time is

Group of answer choices

5.33

5.5

None

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