Haverford says that it has a 74% average rate of acceptance to medical, dental, or veterinary school. Does this mean (schools accepted/schools applied) or (# of kids accepted to at least one school/# of kids applying to a health school)?
I suggest you reach out to one of the women in Pre-Health advising and ask the how the number is derived.
https://www.haverford.edu/pre-health-advising/contact
The latter ratio is much more likely.