es Use the following returns for X and Y. Returns Year X Y 1 22.6% 28.8% 2 -17.6 -4.6 3 10.6 30.8 4 5 21.2 5.6 -16.2 34.8 a. Calculate the average returns for X and Y. Note: 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. Note: Do not round intermediate calculations and round your answers to 6 decimal places, e.g., .161616. c. Calculate the standard deviations for X and Y. Note: Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16. a. Average return b. Variance c. Standard deviation X Y % % % %