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___________________?
Correct answer: B. EV = (Sopt + 4Sm + Spess)/6
- 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
The three-point PERT estimate gives four times the weight to the most likely value, so the formula is (Sopt + 4Sm + Spess) / 6. The denominator is six because the weights total 1 + 4 + 1.
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