Problem 10-7 Calculating Returns and Variability [LO 1] Use the following returns for X and Y. a. Calculate the average returns for X and Y. Note: Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16 . b. Calculate the varlances for X and Y. Note: Do not round intermediate calculations and round your answers to 6 decimal places, e.g., .161616. c. Calculate the standard deviations for X and Y. Note: Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.9., 32.16