Standardized choropleth map

www.jrsainfo.org/.../mapping/sample_maps.shtml

Information that we receive through maps can sometimes be very misleading because the context of the data and message have to be considered in its limitations. In the above map, which is an example of a standardized choropleth map, one important trend to know is that it has actually been aerally averaged, or in other words, it is a choropleth map, so it displays data that is grouped into intervals, but, averages the data in relation to other lands being surveyed. This is important in a map because it is able to show the trends, in this map, of the levels of crime, but is able to do so in relation to other areas, allowing the map to represent its trends in a more "uniform" sense.