Problem 10-27 Portfolio Beta and Required Return (LG10-3) You hold the positions in the table below Price Shares Beta 3.8 Amazon.com Fami ly Dol lar Stores McKesson Corp Scher ing Plough Corp S 40.80 30.10 57.40 23.80 100 150 75 200 What is the beta of your portfolio? (Do not round intermediate calculations and round your final answer to 2 decimal places.) Portfolio beta If you expect the market to earn 12 percent and the risk-free rate is 3.5 percent, what is the required return of the portfolio? (Dnot round intermediate calculations and round your final answer to 2 decimal places.) Required return