<p>Sue22, I think the % Pell grant of the enrolled undergrads has meaning by itself. It shows roughly the SES mix you will experience among your fellow students if you attend. Controlling for the number of applicants in each income category would tell you if there is bias in admissions ONLY if you also control for their academic records. Perhaps low-income applicants are also less qualified academically than high-income students, or vice versa, thus leading to different admit rates. I think the percent Pell grants of enrollees is more telling about the likelihood of “fit”.</p>