Thank you guys so much. These information has really helped me.

Another question that is bothering me is: What really counts for the admisssion in a graduate program, is it just GPA or extra activities and experiences during undergraduate such as being a RA, TA, presidents of organizations, summer research, etc? What counts in your resume?

What has personally helped you get into the program? This goes out specially to Chiyapasalekaancha and Sparty. I would really appreciate it. Thanks!