Chartpedia

A choropleth chart is a type of map-based visualization that uses shading or color to represent data values. The term "choropleth" comes from the Greek words "choro" meaning "region" or "area," and "pleth" meaning "multitude" or "value."

Choropleth charts are often used to represent data such as population density, income, or election results. By visualizing data in this way, patterns and trends in the data can be easily seen and compared across regions.

One advantage of choropleth charts is that they can effectively communicate large amounts of data in a compact format. However, it's important to keep in mind that choropleth charts can also be subject to certain biases, such as the choice of color scale and the representation of data at the regional level.