<p>1) they didn’t deny you b/c if they find room, they might give you an offer later
2) WL is used by schools to have a pool to fill in any shortfall of their normally admitted people. It’s up to you whether or not you wish to remain on any school’s waitlist.
3) how many get accepted? Changes year to year. Unable to know
4) lots of ppl get waitlisted. If you truly still wish to be considered, email them a note enthusiastically telling them so and just wait. In the meanwhile, accept the offer of the best admit you’ve rec’d and begin planning to attend that other one w/o any regard to GT or RPI. That’s how it works. Good luck</p>