Honestly, Christou is the best professor I've ever had at UCLA.
You can really learn a lot from this class if you put your effort into it. He really cares about his students and hopes them to be successful. He gives about 12 hours of OH every week, and he is always there ready to help you. He knows his stuff and what he expects us to learn in class.
As all of you already know that this course is extremely hard, the average of the midterms is just a little bit over 20, and it's becoming lower and lower every year. There are in total 16 homework assignments this quarter. You need to be prepared for all of these before you take this class.
In the exam, you need to clear your mind to do it. Sometimes you will find yourself cannot solve any of the questions on the exam, but just write down what you know about related to the questions, then you will receive partial credits where most of your points come from.
During the quarter, you need to be optimistic about your grades and assignments. Professor Christou is not meant to make difficulties for all of us, but he wants us to learn something beyond the scope in the exams. He told us that "grades are just numbers, what matters is understanding the material". Try your best to learn, not just to try to get an A. You may feel bad about it at first, DON'T DROP THE CLASS simply because you thought you did not do well in the exams. At the end of this class, I believe you will find Christou a very good person.
Enjoy it.

Professor Christou might be the only stats prof here who actually cares about you. Yes his tests are brutal, his homework makes you want to cry in the middle of the night, and sometimes his material is so challenging it makes you question your future academic path. But at the same time, he is the kind of professor who will push you to be a better, more prepared student.

some logistic:
15% homework (there's like 15 homework)
20% midterm 1
25% midterm 2
40% final

Homework is graded on accuracy, but with the TA and some smart kids in your class, you should be able to get 100%. Both midterms are hard, buttttttttt the curve works in your favor. For my class the average for the first midterm was around 22, and if you score above high 20s you are in the A range. For the second midterm the average was around 20 as well, and if you score above 25 you're in the A range. Coronavirus happened so Christou made the final optional, which just shows you how much he actually cares about his students.

This quarter is rough, but I am happy that I took 100B with Christou even though people keep saying it would be suicide. He actually cares about his student learning and have 20 hr of office hours per week. He even remembers my name ??? (Im an internatonal student so my legal name is very hard to pronounce for him but he still tries to do it????????)

If you like challenging yourself, please take 100B with him. He is such a great professor and you will end up loving him.

I love Prof. Christou as a person but not as a test maker. I had to study my ass off, sacrifice my happiness/health/social life throughout the qrt to get As on both midterms. (Though I failed the final and ended up with an A-, which sucks.) Some naturally talented people grasp the material faster, and the professor does not understand his exams are just not possible even to some most hardworking students, because of the presence of those talented students in his class (those people who would get 60-almost 90 regardless when the averages were around 35-40)..

If you have a good mathmetical background and wanna get the most out of this course, go for it.

If you want an A, but don't have a good mathematical background, and want to keep your health/integrity/social life/happiness, take this class with a different professor.

But I have to comment on how great this Professor is. I'm a senior, but I haven't seen any other professor who is as kind, caring, and friendly as he is. He is genuinly interested in his students and wants to get to know them more. Although I hate his exams, he is too great a professor I would still prefer his course to some other professor's.

For Stats 100B the midterms were cake, but the final exam was nothing like the midterms. It was not even like the practice problems he gave out in class. The result? A grade that does not equate to anything. The final exam does not measure how much the student knows. Also, he tries too hard to comfort the student. He will say that he will reward students for hard work and attendance in the end. He doesn't. So just remember that your grade is based solely on how you do on the midterms, HW and final (as with most classes).

I must say that I learned hardly anything over what I learned in AP stats in 11th grade! The stats 100 series coupled with Christou's slow teaching style is an insult to the statistics profession. Great...I know how to show that z^2 is a chi-square variable...useless...

I can hardly wait to see how little I will learn in "100C: regression analysis."

I must mention the one time Christou threw a temper tantrum in front of several of his students during his OH two days before the final. He slammed things onto his desk, gave rude responses to students asking questions, and when I asked him a question, he responded, "not today." Then what the heck is the point of office hours?

I don't know what to say. I have a very mixed review of Christou. He is very giving with regards to his office hours and handouts so I recommend him for that, but I do NOT recommend him when I consider the invalidity of the final exam, as well as his "moodiness" and lack of application.

This class was chaotic and messy at the best of times, and single-handedly made me want to change my major at the worst of times. A few things:
- There were no lecture recordings, no slides, and the handouts only had questions with solutions you had to copy down during class and some empty fill-in-the-blanks. Because of this, you had to attend lectures to understand or learn anything.
- Averages on the midterm and final were around 20-30%, which was curved generously.
- Quizzes were open-note. Exams split into a closed-note portion that was turned in before the open-note portion.
- I had no idea what my final grade would be until it was inputted on myucla. Grading curves were only communicated verbally in lecture, and we received our physical midterm and quizzes back with the uncurved grade written on it.

Just got out from 100B. TBH, he exam is actually very very very hard. The average score is around 18. However, he curve a lot. You not going to learn anything from his lecture, so be ready to go to OH and ask for help. Good thing he got 6 OHs a week. Overall, Prof. Christou is very helpful and generous on grades.

Professor Christou is by far the most interesting professor I have ever had. After about the first 2 weeks I realized I was going to have to make a choice with this class: either treat it like any other class, attend, go to discussion, study starting 2 - 3 days before the exam or make the class my entire life. I decided to do the former and I suggest everybody taking it does the same. The truth is unless you're going into research, none of this matters. Do enough to soak in the main concepts, but not too much to where you stress and question your intelligence. As for the exams, find the 3 - 4 questions that are extremely similar to homework problems or past exams and answer those, then focus on the rest. No matter how poorly you may think you are doing the curve will always catch you. I got a B+ and I'm sure if I dedicated my life to this class I could've gotten an A- or possibly A. I instead chose to focus my time on grasping the applicable and honestly more interesting topics that 101A and 102A had to offer which is a tradeoff I would take every time. Overall, I suggest you take this course IF you have the right mindset AND you are willing to possibly get a B+ or B.

Professor Christou is an extremely caring faculty member that values how much students actually learn. He is very helpful in OH, and is always happy to elaborate on axioms and corollary derivations in class. The class is very tough, with exams having an average score of ~35-37%. Don't worry, he curves the class and is very generous with your answers on exams. The homework is relatively long, but it's really helpful to go to OH and section for them. It's also great practice for exams.

Overall, love Professor Christou, and I can't wait to take 100C with him.

I have no idea why people keep saying he's one of the best and most caring professors. His lectures were all over the place, his handwriting was absolutely terrible, and his exam average was around 37, which included the free points he gave because he messed up the very first question on the exam. Despite the fact that he had a whole bunch of office hours, I don't see how one can use "caring" to describe him. He is not caring if he gave out quizzes and exams that contained materials he covered the same day, nor is he caring if he planned on going over new materials and assigned a new homework assignment that's due on the day of the final. This class with him consumed almost all my time, and I've never been so overwhelmed, even when I was taking 21 units in one of my previous quarters. People who left positive reviews should really think about if he's truly that nice or they were just suffering Stockholm syndrome and attempting to develop an unrealistic image to justify their suffering.

Christou loves this subject and his students and invests a ridiculous amount of time into office hours. His exams are crazy hard. Expect to get like 40% on them. The class is obviously curved a lot to make up for that. If you do the work and try to understand stuff you will probably at least get a B+. If there are other professors available who seem easier, probably take them if you don't care about really learning statistical theory much.