College admission unpredictable

Having watched UMich admissions here on CC for a couple years, I just wanted to point out that roughly 40,000 kids apply EA to UMich. UMich accepts roughly 8,000, or half of the total admits, as EA applicants. They accept many high stat students and they defer many high stat students. I’m sure there’s a methodolgy, since like most schools, they’re building a diversified class.