What characterizes a choropleth map?

A choropleth map is defined by its use of color or patterns to represent statistical data across various geographic areas. This type of map allows for the visualization of trends or variations in data such as population density, income levels, or election results, by assigning different shades or patterns to specific regions based on the values of the variable being measured. The clear differentiation across regions aids in analyzing and understanding complex data at a glance.

This distinctive characteristic of employing color gradients or patterns based on statistical measurements is what sets choropleth maps apart from other types of maps. While certain maps may feature landmarks or geographical features, they do not necessarily convey statistical information in the same visually interpreted manner as a choropleth map does.