The .gov means it's official. Federal government websites often end in .gov or .mil. Before sharing sensitive information,
make sure you're on a federal government site.
The site is secure. The
https:// ensures that you are connecting to the official website and that any
information you provide is encrypted and transmitted securely.
State and local users of the data may tend to assume that the rates have low levels of dispersion; however, a closer analysis reveals large variances attributed to sample size.