Taxes. The Retirement Living Information Center compiled data on projected combined state and local taxes as a percentage of income for each of the 50 states for 2007. The table below gives the values for some selected midwestern states.

State Tax as percentage of income Illinois 10.8%

Indiana 10.7 Iowa 11.0 Michigan 11.2 Minnesota 11.5 Ohio 12.4 Wisconsin 12.3 Is the variable “state” categorical or quantitative? To show the distribution of these data, would you use a pie chart or a bar graph?