An exhaustive financial analysis has produced the following returns on two investments (Stock X and Stock Y) under three different scenarios (S):Expected Returnsa. Calculate the expected return on each investment.b. Calculate the standard deviations (?) for both X and Y.c. Calculate the coefficient of variation (CV) for both X and Y.d. If you were to create a portfolio consisting of 67% of Stock X and 33% of Stock Y, what will be the expected return (r) and the standard deviation (?) for your portfolio?