You have a three-stock portfolio. Stock A has an expected return of 17 percent and a standard deviation of 38 percent, Stock B has an expected return of 20 percent and a standard deviation of 56 percent, and Stock C has an expected return of 15 percent and a standard deviation of 38 percent. The correlation between Stocks A and B is 0.30, between Stocks A and C is 0.20, and between Stocks B and C is 0.05. Your portfolio consists of 30 percent Stock A, 27 percent Stock B, and 43 percent Stock C. Calculate the expected return and standard deviation of your portfolio. The formula for calculating the variance of a three-stock portfolio is: