No.
Yes, a completed assessment at the faculty of business, economics and informatics is sufficient to enter the minor program.
The module STA120 is going deeper and discusses basic statistical topics in a more rigorous way. Evaluations have shown that you will not be annoyed with the content.
No, but then we really recommend to start by taking STA120 before taking any further statistics modules, since it provides a smoother intro to R.
Yes.