A multivariate choropleth map is yet another choropleth map that instead of displays just one or two variables, displays and combines two or more variables on the same map. The above map is a multivariate choropleth map of the United States from 1988-1992. It is multivariate because it combines and displays three variables under study, lung cancer mortality rates of white males aged 65-74, annual precipitation rates of the country, and the percent of people living below the poverty rate.
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