VERY concerned about his students. For stats 13, it seemed a little out of the ordinary that we focused almost entirely on proofs and derivations (rather than basic problems, which a lot of my friends told me they did in past quarters) - but it does really help you understand the material and its theoretical basis. most of our quarter was spent writing papers or proving certain formulas - and indeed, this is what the final was on as well. but, if you really study his proofs/derivations and understand how everything works, you can do very well on the final (the only exam we ever had).

Professor Wu is an extremely nice professor! However, this was his first time teaching an undergraduate course, and so there was no structure to our class: he was vague on which topics in the book he was covering (so everyone basically returned their books) and all we did for the entire qtr was go thru derivations which drove me crazy because I had no idea where they were coming from! People who did well in this class had previously taken Stats either at UCLA or high school so had no problems understanding the material. I wouldn't recommend professor Wu for an undergraduate's course.