Save 5.5 points This problem is most easily saved using a spreadsheet for accuracy input percentages as decimals or use the sign, do not input as if these were integers. Do not do any interim rounding, calculate values to 6 decimal places before converting to percentages, state the answer to two places, do not use labels , S. For example, if the value is 0.06458, the answer is 6:46 Given the following information about past returns for Saphir Netrnarketing, what is the standard deviation of returns? Year Return 1 11.10% 23.80% 3 290X 46 30% 5 2.20