Graduate school potential

I am trying to measure my success for graduate school and potential. I have received a score of 1150 on my gre. I had 700 (65%) in the quantitative section. I had 450(45%) in the verbal section. I had just under a 3.0 undergraduate gpa in computer science. I was wondering what my potential is for success and what do i need to do to get into a statistics program for graduate school. What kind of scores do i need and what kind of preperation should i do? And if i have what kind of scores what kind of school could i expect admission too. For instance, if i retook and were to get 760 in the quantitative section, what would happen?