8. Portfolio risk and return Ariel holds a $7,500 portfolio that consists of four stocks. Her Investment in each stock, as well as each stock's beta, is listed in the following table: Stock Standard Deviation 12.00% Perpetualcold Refrigeration Co. (PRC) Tobotics Inc. (TI) Three Waters Co. (TWC) Flitcom Corp. (FC) Investment Beta $2,625 0.80 $1,500 1.90 $1,125 1.20 $2,250 0.40 12.00% 16.00% 28.50% Suppose all stocks in Ariel's portfolio were equally weighted. Which of these stocks would contribute the least market risk to the portfolio? Tobotics Inc. Three Waters Co. Filtcom Corp Perpetualcold Refrigeration Co. Suppose all stocks in the portfolio were equally weighted. Which of these stocks would have the least amount of stand-alone risk? Tobotics Inc. Three Waters Co. Filtcom Corp. Perpetualcold Refrigeration Co. If the risk-free rate is 7% and the market risk premium what is Ariel's portfolio's beta and ed return? Fill in the following table: Beta Required Return Ariel's portfolio