Question: an activity on a PERT network has these time estimates: optimistic=2, most likely=unknown, and pessimistic=unknown. if varicane=4 and expected time=6. what are the most likely

an activity on a PERT network has these time estimates: optimistic=2, most likely=unknown, and pessimistic=unknown. if varicane=4 and expected time=6. what are the most likely and pessimistic estimates?

A) 8, 12

B) 5, 14

C) 6, 9

D) 8, 14

E) 5, 12

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