This course was not very interesting or difficult. The homework can be tricky as you get later into the semester, but it's a fairly standard introduction to statistics course. Most of my grade came from the two exams (75%), but a practice exam was provided for each that was almost identical to the actual exam. The homeworks are good study tools, but the practice exams are way more useful.

Prof. Zhang was a fairly unengaging lecturer, and I learned most of the content through completing the homeworks. He was not very communicative or kind during class or office hours, but I also did not interact with him much.