Problem 12-7 Calculating Returns and Variability (LO1] Returns Year Y 1 20% 15 % 23 35 9 14 4 16 - 21 5 10 25 NM 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.) Answer is not complete. x 9.20 Y 13.60 % % Average returns Variances Standard deviations 15.35 % 21.14 %