Returns Year X Y 23 % 1 11 % 2 15 26 - 14 - 13 10 11 5 10 16 Using the returns shown above, calculate the arithmetic average returns, the variances, and the standard deviations for X and Y. (Do not round intermediate calculations. Enter your average return and standard deviation answers as a percent rounded to 2 decimal places, e.g., 32.16. Enter your variance answers rounded to 5 decimal places, e.g., .16161.) X Y % Average returns Variances Standard deviations