Question: In a CPM with three activity time estimates, if optimistic, most likely, and pessimistic times for an activity are respectively 6, 9, and 18 days.

In a CPM with three activity time estimates, if optimistic, most likely, and pessimistic times for an activity are respectively 6, 9, and 18 days. Then, the expected time and the standard deviation of the activity are respectively, a. (10, 2) days b. (9, 4.9) days c. (10, 4) days d. (11, 3) days e. (12, 0) days

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