Variance and standard doviation. Calculate the vanance and the standard deviation of U.S. Treasury bills, long-term government bonds, and small-company stocks for 1950 to 1959,1960 to 1969,1970 to 1979 , and 1980 to 1989 from Table 8.1. Which had the highest variance? Which had the lowest variance? Click on the Spreadsheet Learning Aid to see Table 8.1-Year-by-Year Returns, 1950-1999. Hint. Make sure to round ail intermediate calculations to at least seven (7) decimal places. The input instructions. phrases in parenthesis atfer each answer box, only apply for the answers you will type. What is the variance of U.S. Treasury bits for 1950 to 1959:1960 to 1969.1970 to 1979 , and 1980 to 1989 ? The vartance of U.S Treasury bils for 1950 to 1959 is. 1. (Round to five decimal places.) Variance and standard doviation. Calculate the vanance and the standard deviation of U.S. Treasury bills, long-term government bonds, and small-company stocks for 1950 to 1959,1960 to 1969,1970 to 1979 , and 1980 to 1989 from Table 8.1. Which had the highest variance? Which had the lowest variance? Click on the Spreadsheet Learning Aid to see Table 8.1-Year-by-Year Returns, 1950-1999. Hint. Make sure to round ail intermediate calculations to at least seven (7) decimal places. The input instructions. phrases in parenthesis atfer each answer box, only apply for the answers you will type. What is the variance of U.S. Treasury bits for 1950 to 1959:1960 to 1969.1970 to 1979 , and 1980 to 1989 ? The vartance of U.S Treasury bils for 1950 to 1959 is. 1. (Round to five decimal places.)