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.
Scatter plots showing the mean rating for a message against the rating variance for that message. Each plot shows the means and variances calculated for a different question. The opacity of the points is scaled by the number of observed ratings for that message. In this case, the maximum number of ratings observed for a message was 10 and the minimum was 8.
