MBA programs have become increasingly competitive in the past couple of years. That said, you would probably stand a good chance of getting into a mid-range program. Your BS in Economics, ML internship and your leadership are definitely assets. A GMAT above 700 could boost your chances at a higher ranked program. However, your GPA is in the average range, you lack work experience and you have no extracurricular activities.
You should focus on schools that place on emphasis on the area you plan to pursue post graduation. That will make it easier for you to show that you fit and would be a strong student. You should also think about any outside interests worth mentioning so that you appear to be more well rounded.
If you are not in a rush to go to business school, I would recommend getting a couple of years of work experience under your belt so that you can position yourself to apply to a top-tier program.
Scottie Winslow | Admissions Consultant | Elite GMAT Preparation and Admissions Consulting | http://www.VeritasPrep.com