As a non business, non engineering, and all in all a non-math guy, I feel that the online math school my program has put me into is a great help. Its been almost 6 years since I have done any really hard math on a daily basis. Sure splitting up bar tabs, and restaurants bills gave me some practice its still been awhile before I have done anything substantive.
Online Math is great, its a voice that narratives you thru module which last for about 10-20 minutes. Then there is a post test along with some sample problems. Most of the problems you can check you work in excel which is nice. Though I still dont know why Excel is calculating covariance incorrectly. If somebody knows that one and wants to let me know I would really appreciate it.
I should be done with statistics today, and then will work on finance this week. Those are the two required modules and then I only have Econ, accounting, and excel left. This should put me in good shape for to sign up for Math Bootcamp at the beginning of the term.
So for all you non quant people out there, rest assured most MBA programs will make sure your prepared for the math rigor.