Bucknell has more greek than you may be thinking.
Merit scholarships are almost always opaque at private colleges (many public universities publish them: X GPA/SAT = Y $). The reason is that privates typically use merit $ to incentivize students that they really want.
YOU know that the reason you didn’t take an advanced math class is b/c you don’t rate the quality of the relevant teachers, but the colleges just see an applicant writing passionately about neuroscience yet taking advanced classes in everything except math.