(Portfolio beta and CAPM) You are putting together a portfolo made up of tour different stocks. However, you are considering two possible weightings: a. What is the beta on each portiolio? b. Which portiolio is riskier? c. If the risk-free rate of interest were 3.5 percent and the market risk premium were 7.5 percent, what rate of roturn would you oxpect to earn from each of the portfolios? a. The beta on the first portfolio is (Round to three docimal places.) Data table