How do art schools determine a full-tuition scholarship?

Thanks for answering, and the reason why I’m asking this is because why not, you know? Who knows what will happen? I could get a full tuition scholarship (although I’m certainly not counting on it haha) but I just had to ask because I’ve gotten no other information on it. And of course I have other plans if this (seemingly unattainable) dream does not get achieved. The main thing I was worried about was if I was going to have to have a 4.0 gpa and outstandingly high SAT/ACT scores and a ton of extracurriculars and community service hours. Because the only thing I’ve really got going for me is my art, and even then I still need improvement of course. Do you know how many people on average receive full tuition at RISD or any other art school for that matter?