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.
HS2 number of sequences used to type each symbol. If there are multiple epochs needed to correctly type a symbol, unintended decisions and backspaces to correct it are represented with different colors. Typing duration was 17.1 and 23.8 seconds/symbol, respectively.
