Agree with Kevin, this might encourage the wrong way of thinking when applying for YC.

Average people, that do average things, generally think in terms of the odds "what's my chance of this, or that.." when deciding about things.

Extraordinary people don't care about their chances, they do things because they are determined or obsessed about whatever it is they are doing, and stop at nothing to make it happen. These are the types of people that go on to build great companies and are the types of people YC generally looks for in the applications.

So if you're the type of person that doesn't care about the stats: you should definitely apply!