1.

If to, tp and tm are the optimistic, pessimistic and most likely time estimates of an activity respectively, the expected time t of the activity will be

A. <img src="/_files/images/civil-engineering/construction-management/73-19-68-1.png">
B. <img src="/_files/images/civil-engineering/construction-management/73-19-68-2.png">
C. <img src="/_files/images/civil-engineering/construction-management/73-19-68-3.png">
D. <img src="/_files/images/civil-engineering/construction-management/73-19-68-4.png">
E. <img src="/_files/images/civil-engineering/construction-management/73-19-68-5.png">
Answer» F.


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