A standardized choropleth map is a map in which the variables are standardized in one way or another to allow the comparison of data distributions across areas. The maps are standardized to relate the data usually to a specific area such as state, county or city. In these maps there is a specific "ranking" given to the different classes. Standardization includes normalizing the data according to these areas and analyzing it in a form such as percent area or per unit measurement. This map is displaying percent obesity standardized to an age group of persons within Canada. There are six classes that are paired with an obesity percentage range. Dark blue relates to a lower percent obesity while dark red shows a higher percent obesity.
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