Marginally enough quantitative background for BA master.
Life will be much better if you have a stat/math/cs minor(s) with it (of course a STEM major is always better for further study in any technical stuffs)
better dont rely on your chinese background for job searching:
1. chinese company overseas: headcount are really limited. Tons of Chinese (who are also good in English) will be fighting for it.
2. companies with chinese business/ exposure: at risk of being located back to china.