1. Your retirement portfolio comprises 100 shares of IBM, 100 shares of Wal-Mart, and 100 shares of Gisco. The price of one share of IBM is $118.87, of Wal-Mart is $146.91, and of Cisco is $57.27,2. The for IBM of 0.95 , for Wal-Mart is 0.43 , and for Cisco is 1.74. The risk-free rate of interest is 2% and the expected market return is 9%. Hint: remember that the of the portfolio is the weighted average of the s of the stocks. (a) Is your portfolio riskier or safer than the market? Explain. (b) What is the expected return for your retirement portfolio