#3

Problem 3 Somcone who believes that the collection of all stocks satisfies a single-factor model with the market portfolio serving as the factor gives you information on three stocks which make up a portfolio. In addition, you know that the market portfolio has an expected rate of return of 12% and a standard deviation of 18%. The risk-free rate is 5%. What is the portfolio's expected rate of return? Assuming the factor model is accurate, what is the standard deviation of this rate of return? (stock,beta,sd of error term, weigth in portofolio) (A, 1.10, 7%, 20%) (B, .80, 2.3%, 50%) (C,1,1%, 30%)