Returns Year X 19% 15% 34 14 15-20 24 2 3 8 5 10 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 as a percent rounded to 2 decimal places e.g 32.16, and round the variance to 5 decimal places, e.g., 32.16161.) Average return Variance Standard deviation 8.8 % 211.7 14.55 0 % 134 0% 413.8 20-34 %