A Classed Choropleth Map is a thematic map that uses color or shading to represent statistical information and areal data. The boundaries are defined and the data often is areally averaged. Classed Choropleth maps combine the data into ranges and the data is shown in intervals, using classification techniques such as equal steps, quantiles, natural breaks, and minimum variance. This Classed Choropleth map uses seven ranges to classification levels to communicate population density of New England in 2000.
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