Problem 10-7 Calculating Returns and Variability Returns Year 10% 2 24 25 3 10 14 4 -17-22 5 10 16 15% 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 the average returns and standard deviations as a percent rounded to 2 decimal places, e.g., 32.16, and round the variances to 5 decimal places, e.g., 32.16161.) Average returns Variances Standard deviations