The are labeled with the number 4 on the map above. The region labeled with the number 3 is .

Master planned communities outside of chicago. note: population density means people living in an area per square mile. chicago, an urban and highly populated area has a much more higher density than a desert, amish community, settlement, or nomadic region.

Answer (datum point);

We can not answer this question because we cannot see the graph,sorry< 3