Question 1: The following common stocks are available for investment: COMMON STOCK BETA (ABC) 1.40 (DEF) 0.80 I JGHI) 0.60 (SKL) 1.80 (MNO) 1.05 (POR) 0.90 a) fit you invest i5 percent of your funds in each of the first four securities, and 20 percent in each of the last two, what is the beta of your portfolio? b) If the risk-free rate is 10 percent and the expected return on the market portfolio is 15 percent, what will be the portfolio's expected returni