Help, completely lost on this question, please show work.

Con sider the following table for an eight-year period: Year T-bill return Inflation 8.65% 8.34 5.93 5.37 5.51 7.94 10.62 12.40 12.28 6.88 4.92 6.64 8.96 13.23 12.46 Calculate the average return for Treasury bills and the average annual inflation rate (consumer price index) for this period. (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g, 32.16.) Average return for Treasury bills Average annual infation rate 7.93 0% 9.25 % Calculate the standard deviation of Treasury bill returns and inflation over this time period. (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g. 32.16.) Standard deviation of Treasury bills Standard deviation of inflation 10.41 % 3.09 @% Calculate the real return for each year. (A negative answer should be indicated by a minus sign. Leave no cells blank - be certain to enter "O" wherever required. Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g, 32.16.) Year Real return 1.30 @% -3.94 @ % -0.95 @ % 45 @ % 1.13 @ % 1.02 @ % -2.61 @ % 0.06 % What is the average real return for Treasury bills? (A negative answer should be indicated by a minus sign. Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Average real return for Treasury bills 1.32 %