I will give you a reference standard. This is a case that our company just finished a few days ago. The student was admitted to the graduate school of statistics in Harvard, but there was no scholarship.
The requirements for students are: undergraduate study in the United States, GPA3.9, GRE 1450.
Besides my own conditions, I have a very unique view and hope in the research field.
I hope I can help you.
Supplementary answer:
If you want to apply for Harvard, you can also take the road of mathematics/statistics, because after all, it is a weak competitive major. However, if you want to try the top 65,438+000 universities in the United States or the top 65,438+00 universities in Canada, the choice of major is not particularly important, mainly your undergraduate grades. But I don't recommend choosing business. The competition is too fierce and there is no scholarship. If you choose science and engineering, plus your own personal works and papers, the hope of applying for a prestigious school is still great.