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.
Scoring system for assessing likelihood (adapted from [39]).
| Description | Definition |
|---|---|
| Negligible | The event would almost certainly not occur |
| Extremely low | The event would be extremely unlikely to occur |
| Very low | The event would be very unlikely to occur |
| Low | The event would be unlikely to occur |
| Moderate | The event would be likely to occur |
| High | The event would be very likely to occur |
