Woah, I never expected that acknowledgement of Indian viewers at the end. I must tell you that I see your videos and always get totally amazed by the way you explain things, I always wanted my professors to focus more on intuitive side of things but then your videos fill that void. And yeah, I am from India and would 'really' love to meet you one day. Your fan!
Thanks so much for this, Mudit! One day I hope to travel to India though it looks like those plans are on hold for a while. Wishing you safety and health in these strange times!
I've watched 7 videos of the distributions series at a stretch and I'm absolutely delighted! I have never watched any statistical videos explained in such details, yet made so intuitive. Amazing work! Please keep these coming.
The timing..... I started studying this distribution at uni (online) today, your video appears on my feed today.... Thanks for your videos btw, they have been so helpful.
Hello, Mr. {Justin}. It appears that I found your teaching resources {just in} time - slightly over a month before the end-of-semester examination. Your teaching is life-preserving. Most intriguingly, the way you teach mathematics is like how a literature professor would disassemble and compartmentalise a Shakespeare play in a university English course. Very interesting and thought-provoking choice of words. I will surely recommend your videos to siblings, relatives and friends...
Dear ZED, This tutorial came just ON TIME between my statistix course last year 2019 and this semester 2020. CHI square, the way you teach it, is suddenly MADE CLEAR like magic. i can say now that I understand the distribution. all I need is to watch the other chi square usage tutorials and make sense of the test . again, many thanks. highly recommended.
My name is carlos Rivera, I am an ophthalmologist from Cali, Colombia, I am a clinical practitioner, trying to understand biostatistics. your videos are very clear and easy to understand. congrats. I will really appreciate videos of survival analysis, ROC curves, interpretation of literature in ophthalmological field.
This is really cool, I love the fact when you say that you hate "Formulas", trust me Ihave come across very few curious souls like you, who doesn't not settle on a given formula but want to understand "Why" You are are helping a lot pf people develop their intuitive streak, please keep it up. Stay Safe!!
Explaining the intuition behind make it so interesting. I don't know why you do that, maybe pure altruism? Share your passion for stats? you're delivering so much value in those videos that you deserve a golden medal. All I can say is thank you.
What a detailed and fun video! You deserve more and more subscribers.Also,this kind of cleared my concepts.Thanks a ton! Love from INDIA,hope your channel grows!
Nice one sir I'm also from India we really appreciate how u want to introduce all these concepts cuz in our college there is not sufficient time for our professor to go this deep
Hi, Really appreciate your videos. I studied same topics from CFA & FRM books and many other videos but never got this high value of information same as i got it from your videos. Many thanks
You need to travel to Uganda as well to meet Bob your proud and committed student. You're one of the few teachers i revere and look up to. You utilize the uncharted territories of the mind. i like your intuitive approach, engages me.
Justin, since you specifically asked __not__ to look into Pearson's social ideas, I had to (we've all descended from monkeys, haven't we?). Yep, not worth looking up. :) But seriously, great videos. It has been years since I finished college, and have not been using my brain so much in my career; recently joined a Data Science course, and even though everyone keeps telling me just the surface of stats and maths is enough, it doesn't satisfy me. Your videos (and a few others) help me gain a good insight into the subject, and I simply love it when suddenly something strikes me and I start understanding stuff! You make RU-vid a good place! :)
I am a great fan of your videos and really impressed by the outstanding teaching ability. I have a doubt with Chi-square distribution. First why we are squaring the z value to get Chi-square? Why we are taking about degree of freedom in chi-square distribution, but not in normal distriubtion? Also, why we are using chi square to find the goodness of fit and finding the association of attributes. If you could explain using a practical example, it would help us to understand. Thanks.
Could you please make a video on the CENTRAL LIMIT THEOREM and LAW OF LARGE NUMBERS. These videos are the most intuitive probability distribution videos i have ever seen.
Sir Great content, I was studying Statistics and all concept were going over the head, after watching' your videos I was able to understand the concepts. GREAT CONCEPT & EXPLANATIONS, KEEP IT UP SIR AT LEAST FOR THE NEEDY KIDS, please also release a video on LOG NORMAL DIST.
Thank you for this good video :) I wanted to explain these topics in my thesis but unfortunately, I hadn't understood these well. Now I know all I wanted to know. I have a request. Please introduce a good book or article. I want to add that to the bibliography.
I haven't seen it spelled out anywhere in these tutorials that arithmetic on random variables (such as sums of distributions, squaring a distribution etc., which are quite relevant here) DO NOT behave like the point-wise arithmetic on PDF's of those random variables! For example, after hearing that the Chi-Squared distribution with DF=1 is "a square of the Normal distribution", one might go to Google and type exp(-x^2)^2 to see if it's true. That is absolutely not the correct distribution, as we can witness by comparing it to the one seen on this video. Zedstatistics, I'd love to see a video about this!
Hello, Justin, and a huge thank you for your videos! I would like to ask if you can create a video where you derive the mean and variance of the Chi-Squared distribution using the moment-generating function? Thanks again!
Thank you so much for your video! This is very much helpful! Could you answer my questions? I still have hard time understanding why the q value goes to infinite at 0. If it's z^2, shouldn't it be finite since z has also a finite value at 0? I also want to know why the max value of q2 is smaller than that of q1(which is infinite). In my intuition, z1^2+z2^2 should be bigger than z1^2 however small the values are. I think I'm definitely missing something out. I'll appreciate it so much if you could answer them :)
@14:00 very confused as to why varience of a variable with k degrees of freedom is the summation of Z square. It is not mentioned anywhere before. Where do that come from? What do earth does it even mean? very confusing
Yo. I've been trying to do this for a while, but it's hard. Any way do you know how to derive the PDF for the chi-squared distribution without using the moment generating function for n samples?
When you say "a single value from a normal distribution which has been squared" what do you mean exactly? Are you saying it's not the squared version of the entire distribution?
As always, the video is very useful.. Can you please make a video on why we are using variance instead of mean to test the goodness of fit.. it would be of immense help
