The following table shows the nominal returns on US stocks and the rain af inflation, Year Naminal ou Inflation ) 2010 118 2.8 2011 6.1 3.8 2012 14.6 2.1 2013 76 48 2014 5 a. What was the standard deviation of the nominal market relurns? (Do not make the adjustment for degrees of freedom descrbed in foolnole 18.) (Use decimals, not percents, in your calculations. Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places. Standard deviation b. Calculate the arithmetic average real return. negative answer should be indicated by a minus sign. Do not round Intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Average real retum References cBook & Resources Worksheet Dificulty: Basic Check my work