Statistics · Columbia University
Not sure why everyone's bitching about this class. Loh's good at explaining concepts in class and uses a lot of examples to demonstrate them, so you can figure out what's going on just by copying stuff off the board. He really goes overkill with this, to the point that half the class can become boring repetitive examples (but at least you're sure to learn the concepts, if you can stay awake). The first half of the semester is just basic probability and basic statistical concepts and you only really need to go to every other class, if that. It gets a little harder for the second half of the semester and I'd recommend actually going to class at that point- he's great at explaining stuff you don't already know. He also gives a good list of midterm and final review material so you get familiar with what you have to know (he'll also tell you in lecture whether something will be tested). In order to do well in this class, you just have to do the homework yourself- if you do the homework, then you'll know all the concepts for the tests.
Ji Meng Loh does explain the concepts in this class fairly well but expect to spend a lot of time outside of class going through concepts he did not. This way be an introductory course but expect to spend a long time trying to figure out concepts and doing his long and tedious problem sets. I don't agree that this is an easy A. He tries to keep the number of A's he gives out to around 25 percent so I gather he curves to b-/b. Well, the quote of the semester would be what he said just before the final. 'If you have done your work consistently throughout the semester, you SHOULD not get anything LESS THAN a C-' - Ji Meng Loh
If you like probability, this is a good class. Ji Meng Lo teaches very slowly, carefully taking apart probability questions in a slow, step-by-step manner. He is a funny oddball of a man, and the class is a very interseting group of characters who are all really smart. at first, the class is very easy, basic probability questions about the probability of randomly picking such and such, basic stuff. The first midterm is a breeze, he even lets us have cheat sheets (two sided page). The 2nd half, however, might take a little extra work, the pdf's and the pmf's get quite complicated and by the end you have to put in that extra effort. If you get the math, you can get this class, and do well. Rest assured, the class is full of math majors so the average is high, so like they say, if you can't stand the heat, get out of the kitchen. Class attendance was very high, too. I checked my problem sets online at other colleges, which was helpful. The book ain't bad either, but this class can get boring. If pdf's and pmf's and funny questions about randomly picking matches out of your pockets and figuring out which pocket is likely to have the last match, then you'll do just fine.
Heavy homework load. Even though it's due every 2 weeks, the homeworks are more like projects or midterms. By the time you finish doing one, you only have 1 week left to do the next one. His tests are nothing like the homeworks he assigns and difficult compared to the homeworks. His lecture notes are easy to understand, but he's a low talker and writes microscopically on the board.
Prof Loh expects his students to put in a good deal of work. But he said this straight out on the first day. This is not an easy class, but Loh said he was trying to prepare us for Econometrics. The good news is, he is a decent teacher. He is organized, covers the material well and is very accessable. The good news is, if you are willing to put in the work--this class is an easy A. Tests are hard but the scale is good. Overall, Loh is a no BS decent guy. Good class.
Very hard to understand what he is saying. decent guy. class sucked. its starts off easy for the first month but after the midterm get real hard.
Horrible teacher, "nice" man (not overly nice as some reviewers here would have you think). Not too willing to help his students. He chose horrible TAs. The solutions he gave to the sample final did not show how he arrived at those answers. 1211 with him is really bad. HUGE AMOUNT OF WORK ASSIGNED.
There are no words sufficient to express the horror of W1211 with Ji Meng Loh, but I'll try: the homeworks take a long time, but when you get to looking at them for the tests, you feel that they're basically pretty doable. He gives a sample midterm and final that seem pretty doable as well- BUT, his tests throw a large amount of questions at you completely out of left field. He'll ask stuff he never went over. I'm not exaggerating, and please believe me for your own sake, this was the worst class I have ever taken in my life. He can't explain concepts in class. he's ok in office hours (nowhere near as great or nice as some people here are making him out to be).
Professor Loh is a dedicated teacher who is easily accessible. The material in this course wasn't too difficult, just put in effort and you'll get a good grade.
A no-frills professor who goes over all the topics in detail. The classes are quite boring, but hey it's stat so deal with it. He answers questions in class and is flexible with his office hours. Probability took up quite a few lectures. He has a sense of humor that sometimes shows through unexpectedly in class. The weekly required recitations are a hassle.