Cha is a good lecturer. The material in my opinion is confusing but if you're good with formulas this class will be fine. If you're not you might struggle because her tests are pretty hard. She is helpful in office hours and she gives you a practice exam and cheat sheet during the exam.

This was the first class I took at UCLA and it was a great one to start with! Even though we only had one live session, I can tell that Prof Cha is nice.
The grading is fairy lenient:
20% lab (3 labs, basically follow along with the TA as they teach you how to code with R)
20% check-ups (8 check-ups, and they're CCLE questionnaires taken for a participation grade)
20% quizzes (4 quizzes, lowest score is dropped)
20% Exam 1
20% Exam 2
There are some textbooks recommended for the class, but I purchased neither of them and I was fine. But, if you feel you need extra practice, you should probably purchase.
Exams slightly mirror the practice exams (which Prof Cha provides). The concepts are the same on each, but the questions aren't necessarily the same type. You can succeed on the exams by taking the practice exams then going back and correcting your mistakes just to make sure you have a solid understanding of everything.
The class overall wasn't too difficult, but that's probably because a lot of the concepts had already been introduced to me in AP Bio and AP Psych. I probably put in around 5 hours of work for each "class" day (more like recorded lecture day lol. It breaks down into 2 hrs of lecture + 1 hr of TA + 2 hrs of condensing the slides into my own notes). I think this time commitment is reasonable for a time-crunched summer session.
Overall, just put in the work and you will get the results!

Overall, this class is a wonderful class to take as a GE if you are into statistics or math in general. The material covered in this class is very closely related to any stats material covered in high school, an overall great introduction to stats. The professors presentations were very helpful as they covered all of the necessary material. Also, the tests were fairly straightforward, relating homework material with class material. I would definitely recommend this class to another student as it was an easy class for me over the summer.

This was my first class at UCLA. my friends and I loved Professor Cha!! She is kind and her lectures are always so soothing :))) Homework, quizzes, and exams are very easy if you took IB math/AP stats. Definitely recommend taking this class with her please do not hesitate.

Professor Cha gives really engaging lectures and her grading scheme is excellent! Most of work is from the write-ups on CCLE and the labs, but other than that, the class is not hard at all. Just watch the recorded lectures, go to labs, and do your homework and you will do well in the class.

I don't usually write reviews, but professor Cha is one of the best statistics Professor, this class convinced me to major in Stats. TAKE THIS CLASS WITH HER.

Stats 10 was pretty much what I expected. Professor Cha is SUPER sweet and clearly cares about the learning of her students and making sure people understand concepts before moving on, which I really appreciated. She is very conscious of monitoring the chat and making sure to answer questions as they come in and engage students through examples and poll questions as much as possible. You do have to go to the lectures which I was not crazy about, but the way you get participation is through poll questions during lecture. There were a few days where she posted interactive lectures on CCLE instead of live, which I thought was a nice break in the quarter. In terms of tests, if you pay attention, go over her slides (especially the example problems) and do her practice tests, you will be totally fine. I cannot emphasize enough how fine you should be - and she gave extra credit after the final that was worth two entire test questions (and there were only 33 total so that was pretty amazing). Before taking this class a bunch of people warned me that it is deceptively easy until the midterm and then ramps up super fast... I think you can get away with half-assing this class before the midterm 100%, but after the midterm just be aware it does get a little more conceptually difficult and it's worth it to pay more attention and engage a little more otherwise you might have to cram a little more for the final. Section is super simple, don't have to go in person, TAs guide you through the labs really well and make R seem super simple. Very easy to get a good section grade as long as you watch the videos at some point and put some effort in. Overall, I had to take this as a requirement and I had a really good experience.

This class was fairly easy for me, as I had taken AP Statistics in high school. As the other reviewers mentioned, Professor Cha is extremely helpful during the online synchronous lectures, and her lecture slides provide clear examples of key statistical concepts. In lecture, she often emphasizes or repeats certain topics that are going to be tested on the quizzes and exams. Her exam questions are very fair and are almost always based off her lecture slides.

The grading breakdown for this course is:
20 % lecture participation (can miss up to two lectures)
20% online quizzes on CCLE (lowest two scores are dropped)
20% lab (lowest lab score is dropped)
20% exam 1 (taken week 4)
20% exam 2 (taken week 10)

In terms of difficulty, the course starts off pretty easy, but gets harder around week 7 when it covers statistical inference. Exam 2 is significantly more difficult than exam 1 since it covers harder topics, but I will say my previous background with statistics definitely helped me through the later parts of the course. The labs are not too difficult to complete since you get a ton of guidance from your section TA (including some R code).

I took this class as a GE and am very satisfied about this professor and course. Overall, definitely would recommend even for those in non-STEM majors. Note that I haven't actually received my final grade yet, so the grade I entered for this review is my predicted grade (based on my assignment scores).

Dr Cha is a great lecturer and the material of this course is very easy. I highly recommend this class for people looking for a science GE that doesn't use too much memorisation or difficult math. All important formulas are given, and Dr Cha gives a lot of preparation material for exams and quizzes.

The lectures are recorded, and asynchronous students simply need to answer 5-10 questions based on the recording of the lecture which is usually covered in the video anyway.

The only difficulty I faced in this class was the labs in R. TA sessions walk through them question by question, so you usually will get full marks for it, but I felt that there were certain things I didn't really understand but just copied from the TA.

Some of my friends got really bad professors for Stats 10 that made the class unnecessarily complicated, so I was a little worried going into it, but Professor Cha makes the class super easy, clear, and straight forward. If you have a choice I would definitely recommend going with Professor Cha.