3. A portfolio is made up of 75% of stock 1, and 25% of stock 2. Stock 1 has a variance of .08, and stock 2 has a variance of .035. The covariance between the stocks is -.001. Calculate both the variance and the standard deviation of the portfolio. 4. Using the data in the following table, calculate the return for investing in Boeing stock (BA) from January 2, 2008, to January 2, 2009, and also from January 3, 2011, to January 3, 2012, assuming all dividends are reinvested in the stock immediately. Historical Stock and Dividend Data for Boeing Date Price Dividend Date Price Dividend 1/2/2008 86.62 1/3/2011 66.40 2/6/2008 79.91 0.40 2/9/2011 72.63 0.42 5/7/2008 84.55 0.40 5/11/2011 79.08 0.42 8/6/2008 65.40 0.40 8/10/2011 57.41 0.42 11/5/2008 49.55 0.40 0.42 11/8/2011 1/3/2012 66.65 74.22 1/2/2009 45.25