Data10- To be specific and accurate…
Brown’s yield last year was 64.9% based on 2,566 acceptances and 1,665 enrolled. It should also be noted that Brown used ED candidates to fill only 44.3% of their entire class which is the reason why at 51% Brown had the highest RD yield among Ivies who offer ED (Columbia, Dartmouth, Penn, and Cornell).
I am undeniably and unapologetically a Brown fan but I believe those are the numbers.