Friday, July 15, 2011

34. Bivariate Choropleth Map

Bivariate choropleth maps use color and sometime lines or patterns to show two sets of data simultaneously on the same map. This map uses two color scales, each with three classes to show the percentage of the population that is under 18 and the percentage of rural population in each district. Maps like this can be used to discover correlation between two phenomena. 

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