Use the following returns for X and Y. Returns Year X Y 1 22.4% 28.2% 2 17.4 4.4 3 10.4 30.2 4 20.8 - 15.8 5 5.4 34.2 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 8.32 % 14.48 % b. Variance 257.092000 524.392000 C. Standard deviation 16.03 % 22.90 %