Question: Question 19 4 pts An activity on a PERT network has these time estimates: optimistic = 2, most likely = unknown, and pessimistic = unknown.

Question 19 4 pts An activity on a PERT network has these time estimates: optimistic = 2, most likely = unknown, and pessimistic = unknown. If variance = 2.25 and expected time = 7.5, what are the most likely and pessimistic estimates? 5, 11 O 5, 12 O 8, 12 O 8,11 6,9

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