please link an excel spreadsheet

1 = 12% 2 = 24% and E(r1) = 15% and E(r2) = 20%

5. A portfolio is made of the following four assets (this information is available in an Excel file too). The table contains the assets annual statistics. A. Calculate the return and standard deviation of an equal weighted portfolio. B. Calculate the portfolio (weights) that will achieve the minimum variance. C. Calculate the portfolio (weights) that will achieve the lowest variance with a 22% portfolio rate of return. 5. A portfolio is made of the following four assets (this information is available in an Excel file too). The table contains the assets annual statistics. A. Calculate the return and standard deviation of an equal weighted portfolio. B. Calculate the portfolio (weights) that will achieve the minimum variance. C. Calculate the portfolio (weights) that will achieve the lowest variance with a 22% portfolio rate of return