Question: Given an activity's optimistic, most likely, and pessimistic time estimates of 3, 6, and 21 days respectively, compute the expected activity time range (time +/-

Given an activity's optimistic, most likely, and pessimistic time estimates of 3, 6, and 21 days respectively, compute the expected activity time range (time +/- standard deviation) for this activity.Single choice.

(1 Point)

8 +/- 1

8 +/- 2

8 +/- 3

4 +/- 4

None of the answers.

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