USC MSBA 商业分析 先修课

想问一下大家有没有了解USC MSBA先修课的 要求有一节B+的Stats课程 必须是taken for credit
我本科上过两节stats 一节B....  一节B+但是被我pass/fail了 还有什么办法可以能补这个课吗？

这是网站写的要求：
Applicants must complete a statistics course before applying. This is to ensure applicants will be successful in our program.

Eligible statistics courses must be taken for credit from an accredited college or university, and must cover all the following topics:

Basic probability
Probability distributions (normal, exponential, etc.)
Inferential statistics such t-tests, and Chi-square test, confidence intervals, and sampling
Intro to linear regression
Please note that prior programing experience is not required

请问商业分析先修课你们一般在哪里修的啊？哪个网站可以修这些课程呢？