This can be considered as a general comment for the entire 102 series taught by Professor Wu. I had A-/A/A for 102A/B/C.

To start with, Professor Wu is a really nice person, he often jokes in class and answers whatever questions students have. Having taken three classes with him, I guarantee you that he really likes teaching, and he is in fact one of the few Professors in the Stats department who wants to teach you something...

As for the class, I have seen many negative comments on Bruinwalk, and I was also worried at first, but it turned out to me that it's an easy A as long as you pay attention in class, read through his notes, do the homework by yourself, and perhaps ask questions in OH. I got A- in 102A bc it was online and I didn't really attend the classes much...

He focuses a lot on mathematical (or theoretical part of) statistics, so you will see lots of derivations, proofs and the math heavy stuff in his class. If you don't like the theoretical part of statistics, then you probably will suffer in Wu's class, and I would highly recommend you to take Miles Chen or other professor's classes instead. However, if you plan to pursue a graduate degree in statistics or go for academia or really want to master statistics, then you have to learn these stuffs and taking Wu's class will be truly helpful. I personally likes the theoretical stuffs he taught, so I enjoyed...But if you aimed for practical application alone, then nope, it's gonna be a nightmare like the other comments have detailed.

In general, I feel like the stats department divides into two tracks (application and theoretical) based on professors. Christou, Wu, etc. are extremely theoretical based; whereas Miles Chen, Lew, Mike, etc. favor application of statistics. (just some personal opinions...)hope helps

Miles is god, take Miles. That't it.

Stupid formatting requirement

“Could you give me some advices on this professor?“ Here is my answer. Just DON’T. Just DON’T. Just DON’T. At least don’t do it when you got options, like any kinds of options. I took 102B this spring with Wu, and these are my thoughts about this nonsense.
First of all, the grade standard of homework is totally ridiculous. I am not sure it’s the problem of grader or Wu. I did the homework totally the same as the grader’s posted answer, and I lost points. When I talked to Wu with the problem, which is frequently happened, he just told me to find TA. And then when I go to TA, TA told me to find Wu first cause he is also don’t know the answer. And his homework is really hard to understand what he is asking. He almost never taught us about R in the class, but his homework is all about R.
Secondly, his teaching quality is the worst I’ve ever taken before. His speaking is ambiguous and stuttering, just the same as his PowerPoint. You have to listen very carefully to get the idea of his lecture. And even if you do, it still chaotic.
Most importantly, the final is totally BS. He said several times that the final would be like the quizzes. But either he’s out of his mind, or I’m out of mine. It’s like dropping from heaven to hell.
All in all, I will never take his class again as long as I am alive.

Professor Wu was one of the sweetest professors I've had here. The exams and material aren't necessarily challenging, but there are quizzes, labs, and homework to stay on top of. Overall, if you manage your time well, this class ends up pretty easy and most people are successful in it. Would recommend taking this class with him.

The class material itself is not difficult, but it is also not very interesting. Wu isn't a bad lecturer but he also isn't reinventing the wheel when it comes to it either. TA's walked through every single lab and homework. Tests are not difficult. If you stay on top of it, an A is definitely possible

Wu is a nice professor who replies to your email even late at night and during holidays, which is amazing. He tries to be funny in the class and jokes at times, but sometimes the class is a little bit boring because of his monotonous voice. Workload is acceptable. The lab is quite easy since TA guides you through. Final is harder than the midterm.

Wu was nice, but not a very good professor. His lectures were often not very clear or easy to follow and I ended up having to learn most of the material from the textbook. That being said, the class itself isn't very difficult, and an A is definitely possible if you do the work.

Dr. Wu is very generous with the grading (quizzes are only based on completion, assignments deadlines can be extended for up to two weeks,...). His office hour is great, and he is willing to stay a long time after to help you with the assignments. The curve of the class is also fantastic (I certainly would not get B if not for the generous curve). However, the midterm and finals can be very rough where he asks minor details questions during lecture, so be very well-prepared! Overall, Dr. Wu is very kind and understanding and I certainly would want to take classes with him again.

The grading in this class consisted of weekly homework, a midterm, final and a weekly quiz. I'd say the material/class was more difficult than I expected, especially homework assignments. But at the same time, Wu was aware when he made things too difficult and made accommodations like extending homework due dates, giving hints and canceling quizzes when necessary. He accommodated students with the covid-19 epidemic by heavily curving the final since I did not deserve the grade I got in the class, to be honest.

Overall, with the clear lectures and challenging but fair material I'd recommend Wu for this class if you did well in stats 20 and remember lots of R coding from then. Otherwise it might be tough.