Esri ArcGIS Pro Foundation Certification Practice Test

In ArcGIS Pro, which type of visualization would likely best represent population density in a region?

1. Choropleth map

2. Dot density map

3. 3D elevation model

4. Network analysis map

The correct answer is: Choropleth map

A choropleth map is particularly effective for visualizing population density because it uses different colors or shades to represent varying densities across geographic areas, such as census tracts or counties. This type of visualization allows viewers to easily compare population density between different regions at a glance, as the color gradient can effectively communicate areas of high and low density. In contrast, a dot density map represents population by placing dots within a geographic area, with each dot representing a certain number of individuals. While this can provide useful insights, it may not convey overall density as clearly as a choropleth map does, especially if the distribution of the population is not uniform. A 3D elevation model primarily represents terrain and elevation, which does not directly relate to population density. This visualization type serves a different purpose, such as understanding topography or landforms. Network analysis maps focus on transportation or utility networks, and while they can show connectivity or accessibility, they are not suited for representing population density, which is more about geographic distribution rather than infrastructure. Therefore, a choropleth map is the most suitable visualization for effectively communicating population density across a region, as it directly aligns with the objective of displaying variations in population across different areas.