You've observed the following returns on Barnett Corporation's stock over the past five years: -26.7 percent, 14.8 percent. 32.6 percent. 2.9 percent and 21.9 percent. What was the arithmetic average return on the stock over this five-year period? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Arithmetic average return what was the variance of the returns over this period? (Do not round intermediate calculations and round your answer to 6 decimal places, e.g., 32.161616.) Variance What was the standard deviation of the returns over this period?(Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)Standard deviation %