Use the following returns for X and Y. Returns Year 1 2 3 4 5 22.7% 17.7 10.7 21.4 5.7 Y 29.1% - 4.7 31.1 -16.4 35.1 a. 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.) b. Calculate the variances for X and Y. (Do not round intermediate calculations and round your answers to 6 decimal places, e.g., 32.161616.) c. 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.) X Y % | % a. Average return b. Variance C. Standard deviation % %