Problem 10-7 Calculating Returns and Variability Year G AWN- 00 Returns X Y 14% 20% 29 - 11 15 10 19 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 answers as a percent rounded to 2 decimal places, e.g., 32.16. Enter your variance answers rounded to 5 decimal places, e.g., .16161.) Average returns % Variances Standard deviations