FIGURE 1.
Risk communication via Euler diagram, icon array, frequency grid, unit square, roulette wheel diagram, and tree diagram without numerical information.
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.