CALCULATING ACTIVITY DURATIONS AND VARIANCES Assume that you have the following pessimistic, likely, and optimistic estimates for how long activities are estimated to take. Using the beta distribution, estimate the activity durations and variances for each task.

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Duration Estimates Activity Pessimistic Likely Optimistic ABC 7 5 2 5 3 2 14 8 6 D 20 10 E 8 3 FSH 10 5 G 12 6 6 3 3 4 16 6 5