Question: The main difference between PERT and CPM is that CPM assumes activity time is constant, but PERT assumes activity time varies randomly. O PERT ignores

The main difference between PERT and CPM is that

The main difference between PERT and CPM is that CPM assumes activity time is constant, but PERT assumes activity time varies randomly. O PERT ignores activity costs. O CPM assumes that activity durations can vary. O PERT assumes that activity durations are known. O PERT does not use network diagram

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