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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 is found by multiplying the probability of each outcome by its payoff and summing the products. The expected value of perfect information is the difference between the expected value ? under certainty and the expected value of the optimal decision under uncertainty. The expected value under certainty equals the sum of the products of the profit maximizing payoffs of perfect forecasts and the related probabilities. 20% ¡Á $20 = $??4.00 40% ¡Á $30 = 12.00 30% ¡Á $40 = 12.00 10% ¡Á $50 = 5.00 Expected payoff with perfect info.? $33.00