Good analysis @ewho. About 84% yield seems possible. That would be an exceptionally high figure, perhaps the highest of any national university ever (or at least in the last 50 years). It would also be remarkable given the geographic/academic draw of the Ivy League schools and MIT, as well all the scholarship money that non-Ivy’s tend to throw at the pool of Stanford admits.
As for the class size, I don’t see it as out of line @fredthered . Per this Washington Post article from 2014, Stanford’s goal for the size of the class entering in the fall of 2016 was 1800. They pretty much hit that exactly. https://www.washingtonpost.com/local/education/stanford-university-plans-to-increase-its-undergraduate-enrollment-by-100-a-year/2014/09/02/7343a508-32a1-11e4-a723-fa3895a25d02_story.html