Cheyenne 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: Suppose all stocks in Cheyenne's portfolio were equally weighted. Which of these stocks would contribute the least market risk to the portfolio? Western Gas \& Electric Co. Tobotics Inc. Perpetualcold Refrigeration Co. Makissi Corp. Suppose all stocks in the portfolio were equally weighted. Which of these stocks would have the least amount of stand-alone risk? Western Gas \& Electric Co. Tobotics Inc. Makissi Corp. Perpetualcold Refrigeration Co. If the risk-free rate is 4% and the market risk premium is 5.5%, what is Cheyenne's portfolio's beta and required return? Fill in the following table