Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
A case when visualizing the data illustrates that although there are separate clusters, the inference is not affected: the relationship between income and healthcare quality is homogeneously positive. The clusters may have arisen due to a sampling artifact or due to naturally occurring patterns in the population (e.g., discontinuous steps in healthcare plans).
