This map is an example of a univariate choropleth map. in these types of maps, we have one variable that is being analyzed, in this case, median household income. The map uses the standard classification methods needed for a choropleth map. but uses less detail. As the level of income goes up, the color goes into a deeper red. Like most maps, this feature is present. With univariate maps, we can get an easy way to look at a topic. With bivariate maps, we often times have multiple things to look at and analyze. The reader is left to make correlations based on the information they see on the map. With a univariate, all the information that they need is there for them with a large ease in interpreting the information.
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