2. This question includes page 3 and page 4. The following probability distributions of return for Stock A have been estimated Stock A Probability 0.25 0.50 0.25 15% I Calculate the expected rate of return (k), standard deviation (o), and the coefficient of variation (CV) for Stock A. (4 points) The following probability distributions of return for Stock B have been estimated: Stock B Probability 0.25 0.50 0.25 15% 23% II. Calculate the expected rate of return(K), standard deviation ( variation (CV) for Stock B (4 points) ), and the coefficient of III. Based on the calculation of question (1) and (II), which stock is more risky? (1 point)