5rocks A and B have the following historical returns: \begin{tabular}{ccc} Year & Stock A's Returns, rA & Stock B's Returns, ro \\ \hline 2016 & (17.90%) & (12.60%) \\ 2017 & 37.75 & 27.80 \\ 2018 & 12.00 & 32.20 \\ 2019 & (2.50) & (10.40) \\ 2020 & 33.25 & 25.60 \end{tabular} a. Calculate the average rate of retum for each stock during the period 2016 through 2020 . Round your answers to two decimal places. Stock, A: h Stock. B: b. Assume that someone heid a portfolio consisting of 50% of 5 tock A and 50% of 5 tock 8 , What would the realized rate of retum on the portfolio have been esch year? Round your answers to two decimal places. Negative values should be indicated by a minus sign. \begin{tabular}{c|c} Year & Portfollo \\ \hline 2016 & Wh \\ \hline 2017 & \% \\ 2018 & W \\ 2019 & W \\ 2020 & 5. \end{tabular} What would the average return on the portfolia twve been during this perioln Round yeur answer to fwo decimai places. 6. Calculate the standard deviation of returns for each stock and for the portfolio, Round your answers to two decimal places. Stanciard Deviabion 2" Stock A stock a Portfolio d. Calculthe the coefficient of variaban for each stook and for the portfoto. flound your aniswers to two deomal paces. CV stock A Portfolio e. Assiming vou are a insk werye inyestat, would you prefer to hoid stock A, 5 tock 4 , or the portfolia