Problem 10-7 Calculating Returns and Variability [LO 1] Use the following returns for X and Y. Returns Year WN X 21.3% -16.3 9.3 18.6 4.3 Y 24.9% - 3.3 26.9 13.6 30.9 Requirement 1: Calculate the average returns for X and Y. (Do not round intermediate calculations. Enter your answers as a percentage rounded to 2 decimal places (e.g., 32.16).) Average returns Requirement 2: Calculate the variances for X and Y. (Do not round intermediate calculations. Round your answers to 6 decimal places (e.g., 32.161616).) Variances Requirement 3: Calculate the standard deviations for X and Y. (Do not round intermediate calculations. Enter your answers as a percentage rounded to 2 decimal places (e.g., 32.16).) Standard deviations