Question: Using the PERT three-estimate approach, the three estimates for one of the activities of a project are as follows: optimistic estimate = 30 days, most

Using the PERT three-estimate approach, the three estimates for one of the activities of a project are as follows: optimistic estimate = 30 days, most likely estimate = 36 days, pessimistic estimate = 48 days. What are the resulting estimates of the mean and variance of the duration of the activity?

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