Use the following returns for X and Y. Returns Year 2 4 26.4% -3.8 28.4 21.8% -16.8 9.8 19.6 4.8 -14.6 32.4 Calculate the average returns for X and Y. (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) Average returns 7.841 % 13.761 % Calculate the variances for X and Y. (Do not round intermediate calculations and round your answers to 6 decimal places, e.g., 32.161616.) Variances Calculate the standard deviations for X and Y. (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) Standard deviations