Question 1 (25 points) Stocks A, B and C have a monthly return and variance of: (10%, 0.0036), (15%, 0.0009) and ( 3%, 0.036) respectively. The coefficient of correlations are : Coef (A,B) = 0.7, Coef (B.C) = 0.8 , Coef (A,C) = 0.2 a. Calculate the Covariances (A,B), (A,C) and (C, A) b. Calculate the weights to invest in each stock in order to have a portfolio with minimum variance with a return expected of 12% c. Calculate the return of the portfolio using the weights found in (B) d. Calculate the variance for this portfolio