Returns Year X Y 25 % 12 % 2 28 34 3 9 13 4 -7 -27 5 10 14 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., .16161.) Average return Standard deviation