Question: An activity on a PERT network has these time estimates: optimistic = 2 , most likely = 3 , and pessimistic = 8 . What

An activity on a PERT network has these time estimates: optimistic =2, most likely =3, and pessimistic =8. What are expected time and variance of this task?
4.33;6.00
3.67;1.00
There is insufficient information given to compute the answers.
3.67;6.00
4.33; 1.00
An activity on a PERT network has these time estimates: optimistic

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