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Problem 12-7 Calculating Returns and Variability [LOI] Returns Year 2 3 4 5 17% 31 12 -24 10 22% 32 16 -29 23 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, and round the variance answers to 5 decimal places, e.g., .16161.) Average returns Variances Standard deviations x 0/0 0/0 0/0