Statistical Map- a map that shows the spatial variability of a specific distribution or theme. Statistical maps contain a base map with some kind of reference information and the statistical data.
This statistical map shows the unemployment rate in each state in March of 2009, with the lowest rates in green and the highest rates in orange. The key at the top shows the colors that correspond to the rates, as well as the national average to compare each state to. A statistical map is very similar to a thematic map in that it shows data for a subject or theme in a cartographic setting, as opposed to a reference map.
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