2 Homework 1 Check my Year 1 Returns Y 15 % 20% 18 30 9 15 9 16 10 20 3 4 5 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.) Y 8.60% % Average returns Variances Standard deviations % %