Returns Year X 2 3 4 5 13% 16 12 23 % 28 15 12 18 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., 16161.) 0 Average returns Variances Standard deviations