Basic probability: Joint, marginal and conditional probability | Independence

[@johnanzziani3170]

This guys is super good. He just taught in 15 min what a Graduate Professor took 3 hours.

[@bizarrelance3698]

@@suisangtommyfung8740 Kinda the same...Mine took 3 lectures, 1 hr each.

[@abhishekmestry7033]

I have done bsc in stats (2yrs ) and it's took be 2 days to clear the concepts that I can't in 2 yrs by watching those videos😂

[@tonysoprano3910]

+1

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Completely agree this lecturer is truly extraordinary

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[@lydiacapuanodonaldson2224]

You are SUCH an amazing teacher. I was learning this in my statistics lecture today at uni and had no idea what the professor was going on about. Watching this short video made everything make so much more sense. Come teach at my school, please!

[@ericgraigUK]

Finally, someone who can actually explain this stuff. Clearly and realistically.

[@rachelr22]

One of the best tutorials I’ve seen on youtube. God bless you

[@adamlevy8971]

I wish university was just these online videos, and then in person help sessions. Teachers would get to devote more time to helping students and research, lectures would become irrelevant (so university would probably be cheaper as teachers don't have to spend the time delivering the same ineffective lecture over and over again) and with the in person help sessions, teachers could help students who aren't getting it from the tutorial. I feel this would be so much more effective

[@marianaveed2760]

9 months later .... this is exactly what is happening!

[@adamlevy8971]

@@marianaveed2760 That's hilarious and so true XD

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​@@adamlevy8971 So you're the dude who made the wish that started the pandemic

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FBI its this man right here. He started the pandemic

[@hovhannisyanani]

Right, I wonder why universities don't refer to videos. It's easy to find perfect explanation than 700pages of refering books. Instead teachers can help with difficult exercises, preparing students to like the subject, as this is the reason why students still do cheating...

[@thisararathnayake2828]

You are a great lecture. I was learning this in my statistics lectures in past months at uni and I couldn't get properly what the professor delivered. Watching this short video made everything make so much more sense. Great lecturer, brilliant, thank you very much

[@zedstatistics]

Thanks a bunch, TR! Will pass on your fine compliments to the chef :)

[@ithappensjoey]

Awesome teaching skills, I watched it and got it. Watched it again and mastered it. Worth watching.

[@lankottibabu]

Never thought probability is this easy. If this guy was my teacher in my classes my life would have changed. Teaching is an art and just like acting you will have to be born with that talent. This guy is blessed with that talent.

[@3vReanimated]

Appreciated, my instructor was all over the place with this mess, you made this simple.

[@sathiswaranpalanisamy4471]

Its awesome explanation. Within 15 minutes, precisely explained everything. I was struggling nearly an hour to get things but its matter of 15 mins now.

[@hadeels7732]

Your explanation is so clear and simple, I really understand well, you make it easy and save our hours with short and useful video .. Thank you so much

[@sillem4337]

Thank you very much, I was having panic attacks when I was thinking about multivariable distributions. After this video it does make a lot of sense! I wonder why proffesors are so afraid of teaching on examples? Who cares about formulas and definitions when there is no intuition?

[@pauljohncapote7541]

I spent a lot of my times dissecting these concepts in books and only to find out it can be done in just 14 minutes. Thanks

[@momowilliams1420]

Are you kidding me!!!!! I'm 4 minutes and 2 seconds in and he explained Marginal , Joint and I completely understand... It took my professor all friggin night.

[@yashodalangkam3122]

Sir, you have explained the concept in such a flow that anyone can understand them easily.

[@randomkharvi2082]

Thanks for making this video. Formulas do really tend to take down my ability to think. 🤝✨

[@chenqu773]

These topics always confused me from time to time in real case scenarios. Your explanation is concise, vivid and effective. Many thanks!

[@senseij2444]

Just a petty error. At 12:26 it should be Probability of A union B (and not intersection)? Thanks for a great video

[@ricosipka]

The sign is proper, he made a mistake saying union.

[@vishalshinde5252]

Two events are independent if their intersection is equal to their product. The formula on screen is right, he just misspoke it.

[@abduvosidmalikov]

I agree. He had to say the Probability of A intersection B (not union). But yes, formula is written correctly, I think. Thanks @zedstatistics for good explanation!

[@kmejia82]

this was great, i kept rereading my notes but they were too technical. i kept getting frustrated but now i understand ! thank you

[@wearesatellites91]

Ughhhh you just made this so simple, when every textbook just makes it seem so complicated. Thank you thank you!

[@PooGEr97]

$3000 probability & statistics class. $0.00 youtube video.

[@sadeturnemarkowitz7202]

honestly the best way to explain. please do more video's , infect do all the chapters of statistics, your video's are really helpful and makes me tolerate stats a bit more.

[@sargata3054]

Thank you so much! Your explanation is clear and easy to understand.

[@mohamedeljahmi2454]

You are an awesome teacher. You simplified conditional probability, independence, and marginal probability. I spent so much much time studying these subjects and felt in a fog. After watching your video, I feel more confident. I will come back and listen to your videos. God Bless You and Bless anyone who supports you.

[@justtheviv]

Thank you so much! Well explained!!!

[@MrJk349]

The best teacher teaches like he's always teaching a worst student..and u are ONE. Nice visuals, Filled with apt examples ,great vocabulary, good sound and what not...? U are a blessing to all those who a fed up with all those dull texts of statistics...😎 Lots of ❤️ from India

[@jacobm7026]

Great video, man. However, I think your brushed over independence with some circular logic, imo. You said it makes sense to multiply them together because theyre independent since if theyre independent then you multiply their individual probabilities. You hadnt established what's intuitive about multiplying their probabilities together

[@bluejimmy168]

At 11:28 he said that the two variables are not independent. I thought that in order to have a joint distribution of two random variables X, and Y, they both have to be independent? You cant not have a joint distribution with two dependent random variables?

[@coltersummers]

Thank you! Cleared up a ton for me.

[@kartikeykaushik]

Amazingly simple explanation. Been struggling to get the clear understanding of these concepts at so many other places. But FINALLLY.! my search ends here. Thanks a lot brother.

[@alomgirkabir8612]

I refer your videos to my university friends. You explain so Well.

[@Nura853]

Thank you so much for explaining this!

[@paulcal3500]

Hands down best YT video on conditional probability. Thanks for making mate.

[@BeSharpInCSharp]

At 7:21 I have a doubt. P(A int B) = 0.24 which is correct. But the devisor p(B) isn't probability of liking GOT which is 0.4? My calculation was 0.24/0.4 but your's is 0.24/ 0.54. Could you explain?

[@angelthomas9624]

Thank you so much. Really wish there were more teachers like you.

[@renosyaputra]

You gave a very clear explenation, great!

[@Kk-nc8xk]

This is honestly one of the best videos regarding basic probability that I have ever watched. Thank you

[@SBN1402]

Thank you. You have explained it so very well. much gratitude-Shashi

[@firasmusmar2097]

I have a question on Joint and conditional probability. a certificate requires passing 3 exams. you can't apply to the 2nd exam until you pass the 1st exam and you can't apply to the 3rd exam until you pass the 2nd exam. let's name the exams: 1st exam (A), 2nd exam (B), and 3rd exam (C). let's say the passing rates for each are as follows: A = 49% B = 40% C = 37% how we can calculate the Joint and conditional probability?

[@2012phantom2040]

A bag contains 6 white and 4 black balls .2 balls are drawn at random. Find the probability that they are of same colour. Could you please solve this problem in table format? A) 1/2 B) 7/15 C) 8/15 D) 1/9

[@MsCaligurlz97]

bruh, this video explained to me what a one hour recorded lecture couldn't. Thank you

[@Droidz55]

Why can't you multiply the marginal frequencies to get the joint probability. For example, using 0.4 Game of Thrones and multiplying it with 0.46 Male to get the Joint probability of 0.16 in the table? Thanks. I just cant seem to wrap my head around why this cannot be done logically.

[@yuvish00]

For the Noni question, why we don't say the prob(she likes GOT) = 0.24? Instead we compute the conditional probability. Why?

[@RockOn_8338]

I applied probablity in real life and found out who ditched me to jail at 2019.....my beloved wife...🙏🤦‍♂️

[@FernandoHernandez-yl3qe]

Hey, thanks a lot. That was very easy. I had not understood from a book.

[@diaconescutiberiu7535]

If you look through a theoretical book for joint probabilities, you'll see everything, from this video, in terms of x_i, y_i, p_ij so on... you might get the math behind it... so you could say you know about joint probabilities...but you wont be able to say you understood them... not until someone just makes the effort to substitute the variables with...well... tv shows and gender will do!. Awesome video

[@CodewithKython]

I was struggling with conditional probability and your video cleared it up nicely. Thanks. Subscribed and like the video. Will forward as well

[@madsbrdsgaard5315]

Thank you so much! I've been struggling to find a way to intuitively understand this stuff for such a long time. This makes a lot more sense compared to trying to figure out a puzzling equation.

[@jaiswalniket]

Hey, you are super good. But can you clarify why you added 0.05 whilst taking probability of west world ?

[@sumitchattopadhyay2440]

Clear, precise...this is really very good! Thank you!

[@martinumaru9973]

Wow!!! you've opened my eyes within seconds just like magic ... thumbs up x 10

[@DP-rq5nh]

Your videos are so awesome. I've never understood statistics so easily until you! Totally trivial, but I noticed a small mistake at 12:21; you called the operator in the independent formula "union" when the symbol looks like the one for "intersection"

[@fadiabougacha2220]

How can I calculate joint distribution for datasets which contain six variables. Each variable contain 0 or 1? how plot this joint distribution ? with python

[@RodrigoCruz-nk9wf]

Great video, but Minute 7:14. It is not clear (for non English speakers) whether Noni is male or female. So, my suggestion is to change it to a more ... common name.

[@widheg]

Great teaching! At time 12:20 though, you say Union when pointing at a Intersection symbol. Is that a mistake or a misunderstanding from my side?

[@annabrenner5995]

Every Stats or Data Science prof owes Justin Z. a quarter of their salary, is my opinion, based on the comments of all his videos

[@marlonomatang8715]

Thanks for sharing us your great skills.

[@whitestorm2662]

I was given a homework assignment by my 9th grade math teacher and he said that it was so easy he wouldn’t teach us and we had to figure it. Would have fail that assignment with out you. Thanks. Lol.

[@HumbertoFioravanteFerro]

Crystal clear and concise explanation. Thank you!

[@cooltier6174]

I wish every Professor use intuition approach when explaining any topic, unless it is quantum mechanics of course.

[@amirbarjakli3383]

Ty for video. I didn't understand anything in university but now when u explained it I understood everything!! :)

[@rishisingh6111]

People of your caliber should be in academia and teach young generation rather than those professors who always make a concept so formal and nebulous. Thanks a ton, to say the least..

[@snehaljadhav8430]

Thank you! Finally I understood what the formulas are doing🙂

[@lifelinewellness5486]

One of THE best teacher I have ever experienced. Thanks for making thing easy!

[@dantedeluca2477]

You. Could. Not. Have. Explained. This. Better

[@crossleymjojo3429]

Wow! I just solidly learnt something in 15 minutes that I spent 1 hour using a textbook to try and figure out!

[@subhanmehdizade3529]

Thanks, that was so clear to understand, Bravoo

[@martinchiappe]

What’s the video mentioned in the beggining about “numerical variables”?

[@shrutidoria6955]

plz, explain the concept of copula without formula. It's very useful to us.

[@DevangVariaArvind]

This is an amazing explanation. Just on thing, at 12:21 - You say A union B but it is A intersection B denoted on the screen. It should be A intersection B as denoted.

[@jacobsss5827]

I wonder, how many ppl got offe ded by this video xd

[@infinity7647]

Finally understood something my lecturer took 3 hours to explain

[@okarinyuki]

2:04 to find joint probability, for example, west world and female = 25 : 500 2:12 to find marginal probability, for example, Games of thrones = 200 : 500

[@2ralism584]

Hi. Many thanks for your effort. Could you please provide the pdf format of your videos?

[@reeti5958]

I cleared my maths exam 2 semester earlier, I didn't knew what all of this stands for until I saw this video.

[@abhinayaaksubramanian258]

You read out P(A Intersection B) as Union, but otherwise its a really good video!

[@nick_g]

this is the clearest and most intuitive definition i've seen so far. when i feel i don't have an intuitive feel for a concept i start looking for as many different youtube explanations of it. feels like asking my professor to help me 'see' it. thank you. well done!

[@michaelquinlan9594]

Around 12.20, you say “union” but the notation indicates “intersection”.

[@thomasjansen4649]

Very well and simply explained. Would have saved me hours of worked if I would have found your video earlier.

[@RayRay-yt5pe]

Thank you. You've just gained a subscriber

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[@aparadisebird]

tomorrow is my exam and this video is so helpful for me

[@paridhirastogi6708]

This is the best explanation about probability I have ever seen ..............

[@zambrox9822]

OMG OMG You saved my life sir! Thank you very much !!

[@EalhamAlMusabbir]

Its crystal clear now... :) Thanks a lot for your effort.

[@destroyerofdreams42069]

YOU should be getting the money that I pay for uni :(

[@mahicg]

Great, i will pass in my final exam 😍😍😍

[@covelus]

100% agree that formulas make us stop thinking. Not too many in my degree, but I still remember my high school days, physics class: all was just about formulas. We passed the topic solving exercises, we had absolutely no clue about Physics. I could solve exercises using Ohm's law, I had no clue about what that was used for in real life. A shame.

[@patrickmayer9218]

Joint Probability = X and Y (can be written with upside down union symbol) Marginal/Simple Probability = X / Y (or some other simple statistic) Conditional Probability = X given Y Great video!

[@rahimans71]

Great explanation, even a child can understand the concept. Thank u .

[@weeradasattayawuthipong3460]

thank you so much, you explain better than my professor at uni

[@arsalanraza9588]

Need a video of Joint probability for continuous variables too.

[@elisenicole3713]

Teaching statistics better than more than half of these college professors! lol

[@husseinfadin3354]

Nice Thank you so much , your explanation are Very Clear

[@hovhannisyanani]

OMG, finally I got it. It's been days struggling with Mackey book then videos then formulas. Still can't get the meanings of joint or marginal or any probability definition meanings. And finally this great voice has opened my eyes. Thanks for your effort to this video !!!

[@karlomagnoguadalupe4843]

So that's what joint and marginal probability mean.

[@williamofy6376]

Taking my major field test in a month and I have not taken stats in years LOL

[@saisrisai9649]

You are just amazing! Thank you so much for this.

[@saurabhdaund27]

why 0.24 is a joint probablity please explain

[@reema8029]

Bro u just saved my ass, i have a exam in 2 days and my prof is shit, thank youuu sirr