Returns Year 25 % 2 3 34 12% 28 9 - 7 10 13 - 27 14 Using the returns shown above, calculate the arithmetic average retums, 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., 16161.) Y Average return Variance Standard deviation % %