<p>Schools have computer-models that they use that tell them approx how many accepted students will enroll. They don’t need the numbers to be perfect, but close.</p>
<p>These models also allow them to over-award financial aid and merit awards. Which means that when a needy or merit student ends up declining, that does NOT mean that his money can now go to someone else. Exceptions might be when there is only 1 or 2 merit awards, so they might re-award after the 1-2 students decline.</p>