auspicious88

I received a letter asking me if I want my name to be placed on their waiting list last week and I accepted it. But, the problem is I have received admission from NYU and they asked my to reply before April 26th. However Columbia is my top choice. So, I want to wait for the final decision from Columbia. Is there anyone knows, 1. How many applicants are on their waiting list? 2. when will we be notified of the final decisions. I really want to go there!! But I'm afraid the final decision will be a rejection and then I would have nowhere to go. At last, those who have better offers and won't go to Columbia Univ., plz inform them asap. plz, I beg you T-T