Dot Density maps are visual representations of frequency. A single dot is used to represent a fixed number of a given variable. The clustering of dots show greater concentrations of the variable. These maps are useful in visualizing the relationship of variable density over a given area. This map shows the concentration of Hispanic population locations in the U.S. The data seems to be uniform in Florida, Texas, California and New York but the other states concentrations seem to have more of a random pattern.
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