I am not sure when it comes to the variances and standard deviations. Please check my work when it comes to those parts of the question and if its wrong please give the right answer. Please show work too.

Problem 10-7 Calculating Returns and Variability [LO 1] Use the following returns for X and Y Returns Year 21.7% 26.1% -16.7 9.7 19.4 28.1 -14.4 32.1 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 7 76)% 13.64 % 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 0.023531 0.064387 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 15.33 % 25.37 %