I just took the gmat and got a 750 (49q, 44v). I have a 3.97 gpa for my undergraduate finance and accounting double major. I'm going into a MS in accounting program next year. I have credit for 2 semesters of calculus and one semester of statistics. Is it important to take 2 more semesters of calc/linear algebra or should I focus on taking additional statistics and econometrics? Also, am I competitive for a top tier school or should I aim a little lower? Thanks!
Great GMAT score and GPA. Given the little information here, it would be impossible to say whether or not you are competitive for a top tier program, but it looks good. Of course getting into the top 20 programs is no easy task, and even with a great profile, it is a real battle. What you should do is apply for several top programs in the top 20, several in the top 50, and a few "safer" schools outside of the top 50.
It is good that you are looking to beef up your math as well. I would recommend taking calc 3 and linear algebra over econometrics. I had the same question. Linear algebra is definitely valuable and most professors that I asked were in the opinion that calc 3 would be more valuable because you will be exposed to econometrics in the first year of your PhD program. If you're worried about being behind in econometrics, maybe do some self study of it.