Question: An activity on a PERT network has these time estimates: optimistic 2, most likely = 6, and pessimistic - 10. Its variance (if it is

An activity on a PERT network has these time
An activity on a PERT network has these time estimates: optimistic 2, most likely = 6, and pessimistic - 10. Its variance (if it is a critical activity) is Select one: 0 a 18.56 Ob 22.35 OC 8.78 Od 1237 e. 1.78

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