1) Amazon had returns over the last 5 years of 7%, 10%, -2%, 4%, and 1%, with a volatility of 4.74%. a) What is the average return for Amazon over this time period? 4% b) Overstock had a mean return of 7% and volatility of 8.4% over the last 5 years. Suppose you put 70% of your money in Amazon Corp. and the remainder in Overstock. Using the historical returns of the individual assets, what is the expected return on the portfolio? Ew) = 1.701.04) +(.3)(,071 = 4.9% c) if the returns for Amazon and Overstock have a correlation of 0.243, what is the expected standard deviation of the portfolio? d) If Amazon has a beta of 1.7 and Overstock has a beta of 2.2, what is the beta of the portfolio