Friday, July 15, 2011

36. Standardized Choropleth Map

A standardized choropleth map uses areally averaged data, such as population per square mile. The map above shows the number of property crimes per square mile in Milwaukee, Wisconsin in 1995 and could be used to track crime. Caution should be taken however in reading these maps because the size of each unit affects the perceived crime rate. A small unit with a few crimes may be a darker shade than a large unit that actually has more crime.

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