Suppose we have the following Treasury bill returns and inflation rates over an eightyear period: 0. Calculate the average return for Treasury bills and the average annual inflation rate for this period. (Do not round Intermedlete celculetions and enter your answers os a percent rounded to 2 declmal ploces, e.g.. 32.16.) b. Calculate the standard deviation of Treasury bill returns and inflation over this period. (Do not round Intermedlate coleulations and enter your answers as o percent rounded to 2 declmal ploces, e.g., 32.16.) c. What was the average real return for Treasury bilis over this period? (A negative answer should be Indlcated by o minus sign. Do not round Intermedlate colculations and enter your onswer os a percent rounded to 2 declmel places, e.g... 32.16.)