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Prospective estimates for four stocks are provided below: a g(e) Stock ACCO 1.23% 1.24 15.57% BYRN -0.52% 0.47 24.92% CP 1.56% 0.83 8.97% DUX 1.75% 0.71 12.84% The risk-free rate is 0.10%. The expected return and standard deviation of the market portfolio (S&P 500) are 8% and 16%, respectively. (a) [5] (b) [25] Explain the meanings of a, and o(e). Find the optimal portfolio of these securities to be combined with the risk-free security. Prospective estimates for four stocks are provided below: a g(e) Stock ACCO 1.23% 1.24 15.57% BYRN -0.52% 0.47 24.92% CP 1.56% 0.83 8.97% DUX 1.75% 0.71 12.84% The risk-free rate is 0.10%. The expected return and standard deviation of the market portfolio (S&P 500) are 8% and 16%, respectively. (a) [5] (b) [25] Explain the meanings of a, and o(e). Find the optimal portfolio of these securities to be combined with the risk-free security