Final answer:
A Choropleth map is used to reveal data about arithmetic population density. It employs different colors or shades to indicate the statistical data within various geographic regions.
Step-by-step explanation:
The thematic map that reveals data about arithmetic population density is the Choropleth map. A Choropleth map uses various colors or shades to represent statistical data within geographic areas, like counties or provinces. In this case, it could be used to visually represent the population density of different regions. Meanwhile, dot distribution maps represent individual items with dots, while cartogram maps distort size to represent a particular datum, and contour maps showcase continuous data fields. Lastly, proportional symbol maps use symbols sized proportionally to the data they represent.
Learn more about Choropleth Map