Problem 6.2. The historical annual returns of stocks X and Y are: Year 2015: Return on stock X (-12%); Return on stock Y (-10%) Year 2016: Return on stock X (3%); Return on stock Y (5%) Year 2017: Return on stock X (18%); Return on stock Y (15%) Year 2018: Return on stock X (7%); Return on stock Y (13%) Year 2019: Return on stock X (22%); Return on stock Y (28%) Year 2020: Return on stock X (8%); Return on stock Y (9%) Year 2021: Return on stock X (-4%); Return on stock Y (-8%) Year 2022: Return on stock X (14%); Return on stock Y (12%) Calculate the average return and the standard deviation of return of a portfolio that invests $2000 in X and $3000 in Y. Please show ALL workings.