Hi grad.mad,
Showing a high mark in a local university course is a good way to demonstrate you are capable of MBA-level coursework. If you have no statistics background, a "101" course is a good place to start. If you think you can handle one level higher then by all means go for it. These courses are not a requirement for application by any means, so if you can handle advanced college statistics, then it is unlikely an admissions officer would be doubting your quant scores anyway!
Good luck,
Daniel Richards
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