The map shows population density in the United States. According to the map, the Southeast has a。 population density.

According to the map, the Southeast has a high population density.

Explanation:

As we can see on the map, areas that are highly populated are the ones on the shores of Atlantic and Pacific  Ocean. In that sense, as we can see Southeastern territories, such as Florida are highly populated in contrast to some territories in central of northern part, which as we can see are not that populated.

is this question from a book? ?

a memoir is the correct answer