Use the following returns for Xand Y Returns 27.9% -4.3 29.9 -15.6 33.9 22.3% 2 10.3 20.6 5.3 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 8.30 % 14.36 % Calculate the variances for Xand 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 15.82 %