Required to brush up on Quant?

The last time I took Calc II and Stats was in community college back in 2003-2004. I'm applying now to matriculate in 2014. For quant schools such as Haas and Anderson, is it recommended (if not required?) that I retake Stats (and even Calc?) to be realistically considered by admissions?

In terms of work experience, I have experience in tax and financial accounting, but it is not my main job title.

Thanks!