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
Answer:A
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
Explanation: This assumes that there is a very small probability that the actual size result will fall outside the optimistic or pessimistic values.