Can I please get help with problem. 8-20 A-E?

8-20 REALIZED RATES OF RETURN Stock A and B have the following historical returns: 2013 27.00 26.30 a Calculate the average rate of return for each stock during the period 2009 b. Assume that someone held a portfolio consisting of 50% ci Stock A and SOC What would the realized rate of return on the portfolio have been each would the average return on the portfolio have been during this period? c. Calculate the standard deviation of returns for each stock and for the d. Calculate the coefficient of variation for each stock and for the portfolio. e. Assuming you are a risk-averse investor, would you prefer hold Stock A, stock B , or the portfolio Why