Problem 12-7 Calculating Returns and Variability [L01] 10% 2 24 25 3 10 4 1722 510 15% 14 16 Using the returns shown above, calculate the arithmetic average retuns, 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., 32.16161.) 7.40 % 2.73800 9.60 % Average return Variance Standard deviation 2.65000 16.55 096 16.28 096