People love this guy for some reason and I really cannot for the life of me figure out why. He's not the worst professor in the world (or even in the UCLA stats department lol) but imo, the glazing in these reviews is excessive.

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Starting with the good: he's a decent lecturer and it's really nice that he records lectures (especially for the 8am section), but it's also a bit funny that he'll do that and then make these snarky comments about how nobody shows up to class in person lol.
There's also a ton of extra credit on homework assignments, Campuswire participation, he even gave everybody an extra 5% on the midterm just because he felt like the average wasn't high enough. He also tells you exactly what's going to be on the final. That being said, the class is not hard and really does not require all this hand-holding whatsoever, but I'm not going to complain. He also holds office hours very frequently, but see above.

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The bad: Oh boy. On the first day of class, he'll casually say something like "I'm not very good at replying to emails, so don't email me" and just leave it at that for the entirety of the quarter. And I'm supposed to just accept that a college professor who is supposed to be a professional in his field just doesn't check his fckg emails? You'll email him about something and he doesn't respond, so a few days later you go to his single office hour per day, wait for the other 10 people there to get their questions answered, and finally talk to the man himself just for him to address you with this honestly bizarre air of condescension like you've made the most heinous remarks about the dplyr package just for having the audacity to ask for some sort of accommodation.
Homework rubrics are not clear. Very rarely do they range beyond "correct" and "wrong," and for clarification, you of course have to go to the aforementioned office hours. If you're not free, with Miles' refusal to check his emails, you're pretty much SOL. Campuswire is full of people giving useless non-answers so they can farm upvotes for the mandatory participation points. I don't know if the TA even exists outside of discussion. Submit a regrade request on Gradescope and say a Quran verse, I guess.

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Rant over. To be fair to the guy, he does hold office hours an insane four times a week.

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All in all, my Miles Chen Stats 102a experience was probably more of a personal problem - I don't think he liked me and clearly, I'm not the biggest fan of him either. You're unlikely to have as much of an issue as I did - Chen is a perfectly adequate lecturer for this class, and I do recommend taking him, but mainly because I think the alternatives are likely to be even worse. He isn't bad from a high-level standpoint, he just gets all of the little things (communication, being accommodating, professionalism, etc.) completely and absolutely wrong.

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TLDR: Take his class, but keep your expectations in check.

Miles's lectures are great and the hw actually helps u. much love

He's Miles. He's amazing. Very clear and explains things well. Assignments are fair.
There is a Kaggle competition to see the best machine learning model you can fit. A tip is to probably start early and just try out different models and parameters

Professor is very understanding. Homeworks are really hard.

The best Stats professor at UCLA.

Legend. Best Professor I had so far.

Miles is great! You learn how to use and implement a lot of machine learning algorithms.
Grading is as follows:
6 HW's each worth 6%: 36%
2 Midterms each worth 15%: 30%
Attendance Quiz (can watch video too): 10%
Campuswire 4%
Final: 20%

The HWs are not too difficult, as he provides example code that is similar to HW assignments for most of the problems.

The midterms and final are relatively easy, with the conceptual questions being the hardest part, though you can completely bomb that part of them and still easily get an A.

Overall, a great class.

My favorite class I've ever taken. He explains statistics in a very clear manner. I did not have to consult my textbook at all for this course - everything I learned from his lecturing made sense. I definitely hope to have him as a professor again if I take statistics courses in the future.

Professor Chen is definitely a great professor for being his first year lecturing. He is very clear and explains the material easy enough for a child to understand. he does not over complicate things. He does have somewhat weekly quizzes but they are simple and mathematically based. His test are more of a theoretical and conceptual understanding o the material, but again simple. He is funny and approachable. Definitely a recommended professor for the oh so dreaded statistics class of every college student ever. If you have to take statistics and really don't want to, take it with him, promise he'll make it simple. Just don't email him, he will not reply until 2 weeks later.

Great Professor! Interesting class as well, with a focus on coding in R.