Answer: It uses dots to represent a certain number of people living in an area.
Step-by-step explanation:
Choropleth maps are usually used in Geospatial data and it's a form of map whereby color is being used to denote certain attributes e.g unemployment rate for countries.
Choropleth maps uses dots to represent a certain number of people living in an area. Choropleth maps gives easy perception, and are easy to prepare.