Stock A, Stock B and Stock C, Stock D, Stock E, Stock F AND Stock G have following probability distributions: Required: (a) Calculate the expected rates of return for the Stock A, Stock B. Stock C, Stock D, Stock E, Stock F and Stock G (b) Calculate the standard deviations for the Stock A, Stock B and Stock C, Stock D, Stock E, Stock F and Stock G (c) Calculate the coefficients of variance for the Stock A, Stock B and Stock C, Stock D, Stock E, Stock F and Stock G