P8-7 Calculate the coefficient of variation

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P8-7 Coefficient of variation Metal Manufacturing has isolated four alternatives for meeting its need for increased production capacity. The following table summarizes data gathered relative to each of these alternatives. Alternative A B C D Expected return 20% 22 19 16 Standard deviation of return 7.0% 9.5 6.0 5.5 a. Calculate the coefficient of variation for each alternative. b. If the firm wishes to minimize risk, which alternative do you recommend? Why