The expected value for the estimation variable (size), S, can be computed as a weighted average of the optimistic(Sopt), most likely (Sm), and pessimistic (Spess) estimates given as___________________?
(A) EV = (Sopt + 4Sm + Spess)/4
(B) EV = (Sopt + 4Sm + Spess)/6
(C) EV = (Sopt + 2Sm + Spess)/6
(D) EV = (Sopt + 2Sm + Spess)/4
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