Question: Suppose that the optimistic, most likely, and pessimistic time estimates for an activity are 4 days, 13 days, and 19 days, respectively. What is the

Suppose that the optimistic, most likely, and

Suppose that the optimistic, most likely, and pessimistic time estimates for an activity are 4 days, 13 days, and 19 days, respectively. What is the variance of this activity? O a. 2.5 O b. 6.25 O c. 12.5 O d. 15 O e. 13

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