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Answer (B) is correct . Expected value analysis estimates future monetary value based on forecasts and their related probabilities of occurrence. The expected value under uncertainty is found by multiplying the probability of each outcome (event) by its payoff (conditional profit or loss) and summing the products.

Answer (A) is incorrect because The conditional profit or loss must be weighted by the probability of each event’s occurrence.
Answer (C) is incorrect because The best event will not occur every time; less desirable events will also occur and must enter into the calculation.
Answer (D) is incorrect because Each event must be weighted by the probability of its occurrence.