An official website of the United States government
Here's how you know
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.
Group means for proportion of students liking PE vs Mile Time with best fit regression lines (adjusted for sex, proportion of students eligible for free/reduced-price lunch, and urbanization level).