Reviews of professor Zheng Wei

Rating: 1.0/5, difficulty: 3.0/5
He is a poor lecturer and lacks confidence in the material. He seemed to not put any effort into the class. It took over a month and a half for a single HW to be graded, the feedback is sloppy/unhelpful. He would expect a lot from students in terms of how to turn HW in but offer very little in return. You're better off learning stats off youtube.

Rating: 5.0/5, difficulty: 2.0/5
He is great and always available for questions.

Rating: 2.0/5, difficulty: 4.0/5
Seems unconfident in his teaching. Often creates confusion in lecture, students that know the material often had to explain things to him. Takes an easy class and makes it difficult with a lack of effective teaching.