I never comment on anything, but this is so excellent. Immediately understood a concept I have been trying to understand for twelve hours.

@jbstatistics

7 жыл бұрын

I'm glad to be of help!

@mulchdiggums3016

5 жыл бұрын

You and me both! This makes SO much sense when explained properly

@rahulkatara6650

4 жыл бұрын

Do you get the logic of formula of Variance?

Thanks for the feedback and compliment. For a continuous random variable, the pth percentile is the value of the variable that has p% of the area to the left. In the video I say "the 20th percentile is the value of the variable such that the area to the left is 0.2, or 20%". I'm not sure how much clearer I could make that, without going off on a tangent about the meaning of percentiles. At this point in a stats course students have usually been introduced to the concept of percentiles already.

I have a professor that truly doesn’t understand the profession and subject he has selected. His poor choice has me searching through KZread videos for an idea to get started on my exams/homeworks. This video has helped me tremendously, you’ve earned yourself a like and a new subscriber!

Good instructors are usually found on KZread and not in classrooms! Thanks!

@jbstatistics

6 жыл бұрын

My main gig is in the classroom :)

I have been struggling with my stat studies over a week now and so grateful for all your videos and they really help me a great deal. So amazing how you can make complicated things so simple and understandable. Also nice to watch your videos without having to experience annoying commercials. Thanks!

Whenever I have to watch Stats videos...always check for this channel first!!! Best channel for Statistics!! Would recommend to anyone!

almost 8 years later.. and I also think this is brilliant! Thank you!

If my professor explained it this well I wouldn't be here.. Thank you so much😀👌 it makes much more sense now💃

You saved my life! I am taking Statistics online this semester so I have to learn everything on my own. But I was never one from learning straight from a book. I was so confused and getting frustrated. This video is a life saver! Thank you!

@jbstatistics

7 жыл бұрын

You are very welcome. I'm glad I could help!

The expected value is just the mean, which is given in the video (the midpoint between the minimum and maximum). To use calculus to show that, you would find the definite integral of x*1/(d-c) dx, between c and d.

wonderful explanation sir. you’re way of teaching is very much comfortable even for average students. keep it up 👏👏

Your channel is just awesome! You clearly explain each and every concept, and am happy for that. You just gained another sub. Cheers!

Woww..Short and crispy..Watching this 9years old video for my Data science introductory....Maths have no versions..Big Thanks to god ❤️

@jbstatistics

2 жыл бұрын

I'm glad to be of help! I tried to build them to last the test of time.

Thank you so much, I really appreciate your work. I understand better than before when I watch your videos. Thank you.

My teacher used some terrible quality video for gamma and exponential distributions. I was wondering why until I noticed you didn't have a video on it (atleast that I could find). So glad to be back watching your videos again. Thanks again for teaching me stats!

Iam really struggling hard on statistics because of online class being very ineffective, glad this channel can really explain it pretty well and easy to understand

I am beyond grateful for your stats videos! THANK YOU VERY MUCH!

What i like about your videos are that they focus on understanding and intuition; not tricks on how to compute. Great job!

@jbstatistics

2 жыл бұрын

Thanks so much! I'm always happy to hear this type of compliment as that's what I always shoot for. I teach statistics here, not tricks and tips for answering statistics questions.

Great job!!! Very useful videos.. I was panicking till now; I open this channel and keep watching videos in loop and I find that I am done!!!! Superb!!!!!!

@jbstatistics

6 жыл бұрын

I'm glad you found my videos helpful!

The 20th percentile is the value of the variable that yields an area to the left of 0.20. The area to the left is the area of a rectangle with a base of a - 200, and a height of f(x). This means that (a-200)f(x) = 0.20. (d-c)f(x) = 1, since d and c are given as the endpoints.

Wow, your work is really of much help than you could even imagine

Great job man, tons of respect for you. Thank you for helping all of us non-stats kids out, keep up the amazing job :)

@jbstatistics

8 жыл бұрын

+jimmybandme You are very welcome, and thanks for the compliment!

Thanks for your lecture.That seems these videos were made 7 years ago when i was just a kid, but still helpful for me in this stage.Again thank u for clearing the basic concept

@jbstatistics

5 жыл бұрын

Thanks for the kind words, and I'm very glad I could help. I built them to stand the test of time :) The basic concepts of statistics and the underlying mathematics stay the same of course, but I also chose examples that would't look out of place 50 years from now.

Just saved my life. I would give you a hug.

@jbstatistics

7 жыл бұрын

I would take one! I'm glad to be of help.

You're very welcome Kary! Je t'en prie!

Thanks! learned more in this video than in an entire lecture from my "teacher" !

it's so clear to understand ....thank you

Best video i've ever watched for the uniform distribution

This was honestly so useful. I was going crazy over this. Thank you so much :)

@jbstatistics

5 жыл бұрын

You are very welcome.

This helped me understand so much better, thank you !!

You are very welcome Jubayer.

One of the best explanations !!!!

Great Job .These video series are awesome . Very well explained and expose . Thanks a lot men

@jbstatistics

8 жыл бұрын

Thanks!

thank you!! all the videos i watched of yours' were very helpful!!!

Your videos helped me immensely man, I can't thank you enough! I have done all my practice questions for the entire year but there is one type of question I can wrap around, its slightly different in its format don't know if you could take a look at it: Consider a uniform distribution between 0 and b where b is unknown, i.e. x~ U(0, b) i) A single sample is observed with value x=5.0. What is the maximum likelihood (ML) estimate for the parameter b? How would this type of question be done? Im not sure what is maximum likelihood..

easy to understand. easy sample. good job. hope to see the normal distribution video

Very well done. Easy to understand and easy to follow. Thank you!

@jbstatistics

6 жыл бұрын

You are very welcome!

When it comes to the night before my pstat final.

@DaanTheodenPro

6 жыл бұрын

Did you make it?

@marietouakeita

5 жыл бұрын

How did you do?

@christophergonzalez1464

5 жыл бұрын

im curious as well

@revl6151

3 жыл бұрын

Did you fail?

@markgao5963

3 жыл бұрын

@@revl6151 lol I passed it and graduated last year.

Yikes! Thanks for letting me know -- I hadn't noticed that. I'll have to fix that up.

thank u so much, it still works until today !

very good explanation do not stop

Your videos are amazing i hope you continue them by making videos for the joint disturbutions and the covariance and the correlations thank you so much

@jbstatistics

6 жыл бұрын

Thanks for the compliment! I'll be making new videos in the new year, and will try to get to your suggestions (they are commonly suggested topics). All the best.

Thank you so much for this excellent video..

nicely well explained.thank you so much

concise and great explanation

Your videos are brief and to the point. I really love them. However I want to point out something. I believe that for x in (c,d), the values c and d are not inclusive, hence we should write c This is also because the c.d.f. of X is not differentiable at points x = c and x=d so the p.d.f. f(x) doesn't exist at these points.

this is brilliant, thank-you so very much

Thank you so much. I've learned so much on probability distribution thank to you.

@jbstatistics

3 жыл бұрын

I'm glad to be of help!

It's so clear to understand. Thank you

@jbstatistics

5 жыл бұрын

You are very welcome!

Is your statistics course enough for data science/machine learning?

OMG why is this so simple here. I was thinking something completely different.

So how do you know that u need to take the left side area or the right side?

Excellent explanation, but one thing, you could have shown the equivalent way of doing with integration too i.e integration of f(x) dx with limits 230 to 250, many places I see the f(x) as 1 for uniform distribution ..how that rho(x) is calulated

Broken down for a simple guy like me....thanks!

Another great video but I don't understand why for the percentile part you used: (a-200) * 1/50= 0.2. According to the info, the formula is d-c * f(x). In this case, why didn't you use 250 as d and the other c. That's where I am confused.

is there an expected value when using a uniform distribution

can the interval be negactive? e.g -1=1

Thx for this clear explanation but I am wondering why you didn't mention the moment generating function also. It is useful in finding the mean and variance.

@jbstatistics

9 жыл бұрын

To this point, my videos have been pitched at the level of an applied statistics course to students not majoring in statistics. While moment generating functions are certainly useful, they are not something that is typically discussed in this type of introductory statistics course. Cheers.

Thank you very much, very helpful for me!

@jbstatistics

2 жыл бұрын

You are very welcome! I'm glad to be of help!

do you have a video of the discrete uniform distribution?

May the almighty bless you thank you so much

Thank you so much!

excellent explanation. thanks

@jbstatistics

5 жыл бұрын

You are very welcome!

شكرا لك افضل فيديو شفته thanks very much

@jbstatistics

7 жыл бұрын

You are very welcome!

V good explanation. Thanks a ton!

@jbstatistics

10 жыл бұрын

You are very welcome!

Man you are great thank you very much

This is an awesome video, super helpful. Right up until the percentile part. That needs to be greatly clarified. How you actually got the .2 is not clear at all.

Perfdct explanation!

You are the real MVP

@jbstatistics

7 жыл бұрын

Sometimes, yes I am!

Nice video!

I looked at it again and was able to understand. (Y)

Thank you Sir.

thank you so much

My college stats professor is goddamn useless. Thanks for this

@TheDekramer

3 жыл бұрын

i think were in the same boat lmao

thanks! great explanation

@jbstatistics

7 жыл бұрын

Thanks for the compliment!

what does f(x) represent in the context of a problem??

god bless you dude again!

@jbstatistics

5 жыл бұрын

Thanks!

The best channel to learn statistics! Thanks man!

@jbstatistics

9 жыл бұрын

You are very welcome. Thanks for the compliment!

@josebernardosanchezetchega501

9 жыл бұрын

:D thanks to you I'll ace my next stats test keep the good work !

Nice video!! (except that part in the percentile example where you wrote 0.2 = 210)

He explains it so well, this video is saving my ass right now 😂

@jbstatistics

5 жыл бұрын

I'm glad to be of help!

20th percentile. why to the left not the right. Why a-200 not a-250?

wow...excellent

Question: for P(X>230) shouldnt it be 250-231 and not 230 since the minimum value x can take on is 231

@jbstatistics

8 ай бұрын

It's a continuous distribution. P(X > 230) = P(X > 230.0000000000000000000000000...) In the example, X doesn't take on only whole number values, it takes on any value in the continuum between 200 and 250.

Thank You!!

I have a problem of concept here. If the probability of getting f(x) = 1/50 for 200

@jbstatistics

6 жыл бұрын

This video discusses the *continuous* uniform distribution, where the random variable can take on an infinite number of possible values. You're thinking of a discrete uniform distribution, with 51 equally likely possibilities, but that's not the case here.

I should say thank you because its amazing explanation thank you so much

I have a question what if a is negative and b is positive value When applying to equation do I disregard the sign?

@jbstatistics

3 жыл бұрын

No, leave the sign in. There are no issues with a being negative (or a and b being negative). The only restriction is that b > a.

@m.l.f.rilwana

3 жыл бұрын

Ok thankyou

Thank u so much!! Merci

what if c =0,d=1 then 1/(c-d) would be equal to 1 for every number

Thank you

THANKS SIR

Excellent u r genius

taking value of (b-a)1 don’t that contradict f(x) RANGE?

@jbstatistics

6 жыл бұрын

For continuous distributions, the restrictions on f(x) are: 1) f(x) >= 0 everywhere, and 2) f(x) integrates to 1. The value of f(x) can be (and often is) greater than 1. This is not a problem, as the value of f(x) is not itself a probability, but is simply the height of the curve at point x.

@Rahul-oq7wc

6 жыл бұрын

thanks for the instant reply and correct me

What happens when you are looking for Greater than and including or lesser than and including a certain point?

@jbstatistics

3 жыл бұрын

If X is any continuous random variable, and b is any constant, then P(X=b) = 0, and thus P(X>=b) = P(X > b) and P(X

@rugvedkulkarni1593

3 жыл бұрын

@@jbstatistics Thank you! This helped me a lot! :)

Right choice for all the distribution types

@muratcan__22

5 жыл бұрын

There are some minor things that makes these videos special. For example when you say it is not a distribution unless we write the Random variables Xs and the probabilities. That sentence solidify the term distribution in minds of students like me who are just memorized the distrubition word but have never got the intuition of it

@jbstatistics

5 жыл бұрын

Thanks so much for the kind words! I'm very happy that my methods help you develop a better intuitive understanding of the topics!

thank u sir

good job

Hello Professor, if the median and mean is 50% of the distribution, the formula should be (a-200)x1/50 = 50/100 *not* c+d/2 because 0 to C is least of the concern, I think it should be (d-c)/2... If you have time, please guide.

@jbstatistics

6 жыл бұрын

For the example in this video, the mean and median would lie halfway between 200 and 250. Solving for a in (a-200)*1/50 = 50/100 yields a = 225, and (200 + 250)/2 = 225. Either way we get the same (correct) result. (d-c)/2 = 25, which is the *distance* from either endpoint to the median, but is not the median.

@Once-Upon-A-Dime

6 жыл бұрын

jbstatistics Thank you sire, sorry to disturb for my silly calculation error.

Why the area is equal to 1?

Thank you!

@jbstatistics

6 жыл бұрын

You are very welcome!