Winter 2017 - Zhou is one of my favorite professors in the Stats department and I like the way he teaches math. Usually professors who teach math write messily on the board and doesn't pay attention to whether students understand the lecture. But Zhou was very clear throughout every class and always made sure to review the pre-req concepts. He doesn't shy away from giving proofs but you always learn a lot about the details of how the math works, which is not emphasized in many other Stats classes (ie. 101 series). Coding isn't as important in 102B as it is in 102A or 102C, since this class is mostly about linear algebra and optimization. Homework problems (this year's TA gave away the solutions) and exams were focused on concepts rather than computation, but they weren't nearly as challenging as Christou's. I would recommend Zhou because he was a good lecturer and knew his stuff inside out.
Fall 2018 - This professor actually is the worst LOL. This is my first bruinwalk review and I’ve never felt more motivated to write a bad review. I took this class because unfortunately Chen’s lecture was filled up. Zhou was unbearable. Homework was difficult and his notes were not understandable. His midterm and final were nothing like the material he taught in class. Apparently a girl in my lecture was crying during the final. Please please avoid this guy. If you look at Chen’s grade distribution, it’s like 60% A’s. That is NOT the case with Zhou who only gives the top 20% a variation of an A. If you want to apply to grad school, avoid this gpa killer. You’ll get your GPA lowered and it won’t even be worth it because you won’t learn anything. Seriously, avoid this professor. I’ve never learned less in an upper division stats class and this guy should have never been allowed to start teaching this class again.