Returns on the stock of First Boston and Midas Metals for the years 2017-2020 are shown below. First Midas Year Portfolio Boston Metals 2017 -18.00% 26.00% 2018 32.00% -5.00% 2019 18.00% 3.00% 2020 2.5% 15% 2021 8% 12% a. Compute the average annual return for each stock and a portfolio consisting of 60% First Boston and 40% Midas Metals. b. Compute the standard deviation for each stock and the portfolio. C. Are the stocks positively or negatively correlated and what is the effect on risk? Kindly upload your excel workbook after saving your work as "Your ID.xls