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.
The sample results are presented as follows: box represents the interquartile range, the included line figuring the median; lines out of the box represent range with extreme outliers figured as points.
