(i) Compute/calculate expected return and risk (i.e., variance/standard deviation) of Stock A and Stock B. (ii) Compute/calculate expected return and risk (i.e., variance/standard deviation) for a portfolio with 60% in Stock A and 40% in Stock B (40\%). The returns in the below tables are forecast returns. (iii) Compute/calculate the historical average return and standard deviation for a portfolio with 50% in X and 50% in Y