Te 2. The following common stocks are available for investment: COMMON STOCK (Ticker) BETA Nanyang Business Systems (NBS) 1.20 Yunnan Garden Supply, Inc. (YUWHO) 0.90 Bird Nest Soups Company (SLURP) 0.50 Wacho.com! (WACHO) 1.60 Park City Cola Company (BURP) 1.05 Oldies Records, Ltd. (SHABOOM) 0.80 a. If you invest 30 percent of your funds in each of the first two securities, and 10 percent in each of the last four, 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 return