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.
Schematic illustration of two approaches to examining the relation between age and a target variable. In the left panel, the variable is considered in isolation, and in the right panel, it is considered in the context of other variables to which it is related.
