Stats are important, but some other factors that are just as important are:
Statement of Purpose
Letters of Recommendation
Program fit (how well your past research, and future intended research, fits into the universities program)
PhD vs MS
To be honest there is no guaranteed way to say if you will get in or not. I would start and look at the past 2 years information on the search results tool on the forum. You should get a good idea of what the school is looking for when it comes to average stats admitted. Although it is a good estimation, you will see some individuals with amazing stats, publications in top journals, and outstanding past research...still can get rejected for whatever reason. Make sure you have a handful of schools when applying. Best of luck to you!