Expected Standard 4. Suppose that we have three stocks with the following parameter values. Correlations of Returns Return Deviation Stock 1 Stock 2 Stock 3 0.25 v.5 0.5 Stock 1 Stock 2 Stock 3 0.10 0.15 0.20 1.00 0.20 0.303 0.20 0.30 1.00 0.80 5253 0.10 1.00 (a) Find the expected return and standard deviation of a portfolio with 25% in stock 1, 50% in stock 2, and 25% in stock 3. Show your steps.