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Tbe probems indaded in tbis section are set up in anch a way that they could be wad as multiplechoice exam problows. The market and Stock J have the following probability distributions: a. Calculate the expected rates of return for the market and Stock J. b. Calculate the standard deviations for the market and Stock J. c. Calculate the coefficients of variation for the market and Stock J. Stocks X and Y have the following probability distributions of expected future returns: EXAM-TYPE PROBLEMS 275 a. Calculate the expected rate of return, k^,for Stock Y.(k^X=12%.) b. Calculate the standard deviation of expected returns for Stock X. (That for Stock Y is 20.35 percent.) Now calculate the coefficient of variation for Stock Y. Is it possible that most investors might regard Stock Y as being les risky than Stock X? Explain