The Main Ideas behind Probability Distributions

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StatQuest with Josh Starmer

StatQuest with Josh Starmer

Күн бұрын

Пікірлер: 273
@statquest
@statquest 2 жыл бұрын
Support StatQuest by buying my book The StatQuest Illustrated Guide to Machine Learning or a Study Guide or Merch!!! statquest.org/statquest-store/
@CraszyAsce
@CraszyAsce Жыл бұрын
Never understood the relationship between histograms and distributions until now and I did stats throughout my undergrad. This is incredible.
@statquest
@statquest Жыл бұрын
bam! :)
@ehabwasel1903
@ehabwasel1903 Ай бұрын
@@statquest Bam Bam :)
@sohamzemse
@sohamzemse 3 жыл бұрын
Imagine you're at a wild and crazy dance party and you overhear someone talking about statistics. Epic 😂👌
@statquest
@statquest 3 жыл бұрын
Bam! :)
@Renatus_Eruditus
@Renatus_Eruditus 8 ай бұрын
Dag!!😮
@jasonbelcher4476
@jasonbelcher4476 5 ай бұрын
I have talked about recursion in programming at a party. The person walked away from me while I was still talking
@2002budokan
@2002budokan 5 жыл бұрын
Three suggestions: 1) A dedicated play list about distributions, which also talks about the relationships between them (i.e. How taking the limit of Bernoulli yields Poisson or conditioning Poisson yields Bernoulli etc...) 2) Another playlist for stochastic processes 3) In each playlist, tell also the relationships between the elements you are talking about, this shows us the big picture.
@vgtboy
@vgtboy 2 жыл бұрын
As much as I would love for this to happen, these must already be taking a phenomenal amount of time to make. The videos by themselves are gold enough. We can crowdsource this effort and tag the playlists here
@gshooting
@gshooting 2 жыл бұрын
This is great. My stats teacher in high school didn't teach from first principles and I didn't care that he didn't but this is such a simple explanation. Thanks!
@statquest
@statquest 2 жыл бұрын
Thanks!
@rexfarell
@rexfarell 5 жыл бұрын
A step closer to being a data scientist.
@vijaynandyapgol6593
@vijaynandyapgol6593 4 жыл бұрын
How far has the journey come?
@malambanemavhadwe9803
@malambanemavhadwe9803 4 жыл бұрын
😂😂😂
@thepresistence5935
@thepresistence5935 2 жыл бұрын
Awesome
@syedasad5037
@syedasad5037 2 жыл бұрын
Are you a Data scientist now?
@cr1msonda46
@cr1msonda46 Жыл бұрын
how is it going?
@pragyyajain8099
@pragyyajain8099 2 жыл бұрын
Thanks a lot sir I learned a lot from these videos for my M.Sc.Psychology Exam from India
@statquest
@statquest 2 жыл бұрын
Thank you!
@geekyprogrammer4831
@geekyprogrammer4831 3 жыл бұрын
clearly you are one of the best statisticians in the world!! You are definitely providing world class education that too for free!
@statquest
@statquest 3 жыл бұрын
Thanks!
@yakoob4220
@yakoob4220 6 жыл бұрын
I read about it on wikipedia and many other websites but didn't understand anything but this video made the concept clear.
@statquest
@statquest 6 жыл бұрын
Hooray! I'm glad to hear that the video was helpful. :)
@sushodhan
@sushodhan 6 жыл бұрын
Best channel for statistics among the ones I have came across so far.
@statquest
@statquest 6 жыл бұрын
Thank you! :)
@sushodhan
@sushodhan 6 жыл бұрын
@@statquest You are welcome
@SSWang0131
@SSWang0131 5 жыл бұрын
Hi Josh! thank you for doing all these videos in your channel. I also hope to see a playlist of distributions and their relationships. that is, the big map of distributions.
@cunghoctienganh
@cunghoctienganh 5 жыл бұрын
I am doing my PhD now, but still have to study this lolll
@mathavraj9378
@mathavraj9378 4 жыл бұрын
it's the basics that is hard to grasp .. anyone can regurgitate the complex terms by mugging it up but knowing the why is very hard
@leonghchan
@leonghchan 3 жыл бұрын
@@mathavraj9378 Agreed. Reviewing the basics after completing an MSc Statistics course.
@prash9650
@prash9650 5 ай бұрын
Thought I was the only one lacking basic stat aftr doing masters😂
@sidasmad2389
@sidasmad2389 6 ай бұрын
You've an amazing way of breaking down things and I can't believe how entertaining you made it.
@statquest
@statquest 6 ай бұрын
Thank you very much!
@faruqsandi6184
@faruqsandi6184 6 жыл бұрын
Crystal clear! Thank you for making this video short!
@statquest
@statquest 6 жыл бұрын
I'm glad to hear you liked the video! :)
@duvul1562
@duvul1562 2 жыл бұрын
What a great video,the bins explanation solved a question i had but didnt know how to explain,you deserve a nobel prize
@statquest
@statquest 2 жыл бұрын
Thank you!
@dangerousangel777
@dangerousangel777 5 жыл бұрын
Finally I understand. LOL At the end of the semester where it almost doesn't matter anymore. Thank you. lol
@abhishekchandrashukla3814
@abhishekchandrashukla3814 5 ай бұрын
You lietrally open my brain to put stuff in there! Gratefiul I am alive in your era
@statquest
@statquest 5 ай бұрын
BAM! :)
@rakeshnandhaa7483
@rakeshnandhaa7483 3 жыл бұрын
keep up the good work man. Your the saviour of many college students
@statquest
@statquest 3 жыл бұрын
Thanks, will do!
@basicHumanDecency
@basicHumanDecency 4 жыл бұрын
You don't know how much this helped me...
@statquest
@statquest 4 жыл бұрын
Awesome! :)
@THEMATT222
@THEMATT222 2 жыл бұрын
Statquest = Noice 👍
@statquest
@statquest 2 жыл бұрын
Thanks!
@THEMATT222
@THEMATT222 2 жыл бұрын
@@statquest You're welcome :)
@randomlaugh8118
@randomlaugh8118 3 жыл бұрын
you are so amazing Josh, thanks for creating this KZbin channel!!!
@statquest
@statquest 3 жыл бұрын
Thanks!
@ankitasinghchikki
@ankitasinghchikki 6 жыл бұрын
awesome explanation, one of the best i have ever come across :)
@statquest
@statquest 6 жыл бұрын
Thank you! :)
@rrresonance2
@rrresonance2 Жыл бұрын
Wow is this one of the OG statquests
@statquest
@statquest Жыл бұрын
Totally. It's a classic.
@sagek7949
@sagek7949 2 жыл бұрын
This is one of the best videos.
@statquest
@statquest 2 жыл бұрын
Thanks!
@shusi8940
@shusi8940 4 жыл бұрын
Thanks!!!! I FINALLY UNDERSTAND THIS!!!
@statquest
@statquest 4 жыл бұрын
Hooray! :)
@egyptianplanner
@egyptianplanner 3 жыл бұрын
Extraordinary explaination ...
@statquest
@statquest 3 жыл бұрын
Thanks!
@khalmouhajir8888
@khalmouhajir8888 4 жыл бұрын
Awesome Work Josh. It would be great to have a video about the KERNEL DENSITY clearly explained. Thanks
@statquest
@statquest 4 жыл бұрын
I'll keep that in mind.
@hasnain6881
@hasnain6881 Жыл бұрын
Made my concepts clear with ease, And Now I have subscribed SQ.❤
@statquest
@statquest Жыл бұрын
Thank you!
@subahzareenkhanam7125
@subahzareenkhanam7125 6 ай бұрын
I'd really love to see a video on skewness and kurtosis of a curve and how the two are interrelated from you!! ❤
@statquest
@statquest 6 ай бұрын
I'll keep those topics in mind.
@rishabhnarula1999
@rishabhnarula1999 Жыл бұрын
thank you sir, great explanation.
@statquest
@statquest Жыл бұрын
Thanks!
@rishabhnarula1999
@rishabhnarula1999 Жыл бұрын
@@statquest no sir, i am the thankful one here, yours's and many other teacher's videos on KZbin really help me understand the subject. 😊👍
@Jason-xe4tt
@Jason-xe4tt 6 жыл бұрын
Will you be doing Markov Chain Monte Carlo type of video? Although it's just for my own, but that would be great for others to learn from it if there will be one =)
@statquest
@statquest 6 жыл бұрын
It's on the to-do list, but I'll move it up a little bit.
@statquest
@statquest 4 жыл бұрын
@@minhtoto1542 It's on the to-do list, but I am slow and have a lot of ground to cover before I get there.
@msaparajita849
@msaparajita849 2 жыл бұрын
Love the explanation and even the intro of the video 🤣 Thanks a lot Friendly Folks! 👍🏽👍🏽
@statquest
@statquest 2 жыл бұрын
Thank you! :)
@santoshgujar5237
@santoshgujar5237 2 жыл бұрын
Your my cuppy cake, love you soo, Thank you, Sir
@statquest
@statquest 2 жыл бұрын
:)
@swapnilchavan7076
@swapnilchavan7076 5 жыл бұрын
Lots of love sir.... Can you please do this same things to explain calculus ... Or just suggest any channel who deals good with mathematics... 😊
@statquest
@statquest 5 жыл бұрын
Check out 3 blue 1 brown: kzbin.info/door/YO_jab_esuFRV4b17AJtAw
@junwu0912
@junwu0912 2 жыл бұрын
great leaning spot for statics
@statquest
@statquest 2 жыл бұрын
Thanks!
@scienceblossom6197
@scienceblossom6197 5 жыл бұрын
Awesome tutorial thanks
@srinivasaraopayyavula4200
@srinivasaraopayyavula4200 5 жыл бұрын
You are simply awesome
@statquest
@statquest 5 жыл бұрын
Thank you! :)
@EngineerAnandu
@EngineerAnandu 3 ай бұрын
Very good
@statquest
@statquest 3 ай бұрын
Thanks!
@Bablu194
@Bablu194 4 жыл бұрын
Bam! that was a great explanation. I have one silly question: Is there any difference between a statistical distribution and probability distribution? Thanks in advance!
@statquest
@statquest 4 жыл бұрын
They are one and the same.
@Bablu194
@Bablu194 4 жыл бұрын
StatQuest with Josh Starmer Thank you for the response.
@tagoreji2143
@tagoreji2143 2 жыл бұрын
Thank you Sir
@statquest
@statquest 2 жыл бұрын
bam! :)
@dropfiremusic4752
@dropfiremusic4752 5 жыл бұрын
Thank you!
@statquest
@statquest 5 жыл бұрын
:)
@negarmahdavi4330
@negarmahdavi4330 9 ай бұрын
Please make another book and explain all of these statistics fundamentals at one place. the ML book doesn't cover all of the concepts. It's gonna save me a lot of time for note taking.
@statquest
@statquest 9 ай бұрын
I'd love to do that one day.
@hetanshthakore5886
@hetanshthakore5886 Ай бұрын
Is distribution same as probability distribution? I mean what is the difference between a frequency distribution(histogram of all achieved observations) and probability distribution? This point has been vague in my head since when I was studying in School
@statquest
@statquest Ай бұрын
If you normalize your histogram so that the sum of all of the columns is 1, then you it is also a probability distribution.
@hetanshthakore5886
@hetanshthakore5886 Ай бұрын
OK so just to confirm frequency distribution when normalized gives probability distribution. Right?
@statquest
@statquest Ай бұрын
@@hetanshthakore5886 yep
@DarkPrincess_M
@DarkPrincess_M 5 ай бұрын
3:25 since the bin is empty, shouldn't the curve go down to 0 for that particular bin and again go up?
@statquest
@statquest 5 ай бұрын
That's the magic of the curve - it's it is - it is and gives us a sense of what the histogram would look like if we had the time and money to measure everyone in the planet. If so, there wouldn't be a gap there.
@math3mantic
@math3mantic 3 жыл бұрын
Hi Josh, I just realized you don't have any videos related to PDF (or PMF) and CDF, or at least I couldn't find them so far. I would really appreciate it if you can make a video about them as well!
@statquest
@statquest 3 жыл бұрын
Great ideas!
@marshel9884
@marshel9884 4 жыл бұрын
Excellent
@statquest
@statquest 4 жыл бұрын
:)
@nikhilwaghalkar1271
@nikhilwaghalkar1271 Жыл бұрын
Hi Sir You are the only person on KZbin I have ever seen who resolved their subscribers or non subscribers issues. Whenever I ask you reply to me Thank you for that. I have one question which is bothering me a lot. During probability distribution examples we have given parameters of distributions in our examples. So my questions are: 1. In the real world we don't have given parameters with us, we always have sample data with us? So how we get that given parameters in real world scenario. 2. As in question 1 i said we always have sample data with us not the entire population but in the probability distribution function we are passing parameters like mu and Sigma in case of normal probability distribution, so those parameters are population parameters or estimated population parameters from sample data? Thank you in advance
@statquest
@statquest Жыл бұрын
The answer to your questions are in these videos: kzbin.info/www/bejne/rJrOnJytn7aknLc and kzbin.info/www/bejne/iau9Z3qmmMuih7s
@bjithin1595
@bjithin1595 5 жыл бұрын
Thank you
@statquest
@statquest 5 жыл бұрын
:)
@FRANKWHITE1996
@FRANKWHITE1996 3 жыл бұрын
great, thanks
@statquest
@statquest 3 жыл бұрын
Nice!
@rsingh2083
@rsingh2083 6 жыл бұрын
How much smaller with the bins can we go. There has to be a limit between choosing number of bins 1 and number of bins equal to the size of sample.
@statquest
@statquest 6 жыл бұрын
This is a good question, since choosing the right bin size has a large effect on what the histogram will look like. The strange thing, however, is you can have more bins then you have data. For example, imagine you wanted to draw a histogram where values on the x-axis could be anywhere between 1 and 100. Now imagine each bin was one unit wide, so we had 100 bins. Now imagine we got 50 samples, but all of the values were between 45 and 55. The histogram would have a mound of data in the middle, but nothing on the edges. Does that make sense?
@sandipansarkar9211
@sandipansarkar9211 3 жыл бұрын
finished watching
@statquest
@statquest 3 жыл бұрын
nice!
@Alias.Nicht.Verfügbar
@Alias.Nicht.Verfügbar Ай бұрын
thanks a lot!
@statquest
@statquest Ай бұрын
Any time! :)
@SunSan1989
@SunSan1989 Жыл бұрын
Dear Josh, Thank you for the clear explanation of probability distributions; it helped me recall sampling distributions. May I ask a question? When referring to the normal distribution as an example, does 'sampling distribution' specifically mean SD and MEAN, or does it refer to SE and mean of the mean? Or are those both the sampling distribution?"
@statquest
@statquest Жыл бұрын
Here's an example. Say like we collected 8 measurements from a normal distribution and calculated the mean. Then we repeated the process (collected another 8 measurements and calculated the mean), then the collection means would be the "sampling distribution of the means". The standard deviation of that sampling distribution would be the standard error of the mean.
@SunSan1989
@SunSan1989 Жыл бұрын
Every time your reply makes me more confident in statistics, thank you@@statquest
@shubhragarg8624
@shubhragarg8624 4 жыл бұрын
How do we draw a curve? By joining the mid points of the bars of histogram?
@statquest
@statquest 4 жыл бұрын
It depends on the curve you want to draw. If you want to draw a normal distribution, then you can plug in the mean and standard deviation of your data into the equation for a normal curve and... bam! you'll get a curve.
@thebestedits3845
@thebestedits3845 2 жыл бұрын
love the intro
@statquest
@statquest 2 жыл бұрын
:)
@thebestedits3845
@thebestedits3845 2 жыл бұрын
@@statquest i didnt expect a reply either, (glad you did) first time(today) watching your vedios and i love the homemade feel of the intro, also i have question about standerd deviation, all the vedios i searched focuses on how to apply it, but i dont yet have a vlear picture of what it is, what i undestood so far : standerd deviation is the messure of spread(in a normal distribution) and there is a formula to calculate it fron a given mean, my question is, how do we derive the formula? i like to think of mean as the mid point so sum/n makes sence.(as division is opposite of repeated sum) similar to that, when i look at the formula of std, i see we find the average of squre the distance between the mean and x then we find the root of the result. is this a geuss to square and the find the root? or we could have cubed and find cuberoot? thanks for your time.
@statquest
@statquest 2 жыл бұрын
@@thebestedits3845 See: kzbin.info/www/bejne/rJrOnJytn7aknLc and kzbin.info/www/bejne/iau9Z3qmmMuih7s
@123arskas
@123arskas 6 жыл бұрын
DAMN !!! That was Awesome
@statquest
@statquest 6 жыл бұрын
Hooray! :)
@arrigune
@arrigune 2 жыл бұрын
I'm not afraid of Statistics any more. Thanks.
@statquest
@statquest 2 жыл бұрын
bam!
@arrigune
@arrigune 2 жыл бұрын
@@statquest XD
@ugursisik2517
@ugursisik2517 2 жыл бұрын
ı will be able to data scientist thanks to you :)
@statquest
@statquest 2 жыл бұрын
Bam! :)
@samwinchester1580
@samwinchester1580 6 жыл бұрын
What do you do with values that fall exactly between 2 bins?? like if the bins are 4.5 to 5.5 and 5.5 to 6.5, where do you put the value of 5.5? Which bin? please help
@statquest
@statquest 6 жыл бұрын
Sort of like rounding, you just have to decide in advance which way things like that will go - there is no "right" answer. You could decide to always round down, so 5.5 would go into the 5 bin, or you could decide to round up, so 5.5 would go into the 6 bin. It's up to you. Another thing that you have to fiddle around with is how wide the bins should be - different widths can result in different looking distributions - so it's a good idea to try a few and see which one makes the most sense.
@vaibhavkhandelwal6266
@vaibhavkhandelwal6266 5 жыл бұрын
Hi Joshua ...what tool do u use for making diagrams in your videos
@statquest
@statquest 4 жыл бұрын
I draw the pictures in Keynote.
@kuldeeppilaji
@kuldeeppilaji 5 жыл бұрын
BAMM !!! CRYSTAL CLEAR
@statquest
@statquest 5 жыл бұрын
Hooray!!!! :)
@tristanmills4948
@tristanmills4948 9 ай бұрын
If I'd had this when I was at school and university, I might have done some more statistics and probability, instead of running a mile because it seemed so strange compared with the rest of maths
@statquest
@statquest 9 ай бұрын
It is strange relative to the rest of math!
@jacobmoore8734
@jacobmoore8734 5 жыл бұрын
By chance, do you have any material on Bayesian Inference? I'm trying to understand Expectation Maximization (EM) but it's wrecking my mind... all your videos are incredible btw :)
@adrianairina7684
@adrianairina7684 5 жыл бұрын
EM algorithm · Initialize (randomly) · Iterate until convergence - Expectation step: estimate the membership Zji using the θ of the last iteration - Maximization step: update the parameters of the distributions θ,π using zji Soft version of the k-means algorithm · Cluster probabilities Zji instead of choosing the next centroid · Use all data points (weighted by cluster probabilties) to re-estimate the centroids (means, in addition also the covariance matrix)
@adrianairina7684
@adrianairina7684 5 жыл бұрын
This is from my lecture slides...
@siderealbeast
@siderealbeast 2 жыл бұрын
Do you have a video dedicated to calculate the number of bins in a distribution?
@statquest
@statquest 2 жыл бұрын
Not yet. However, there's no specific way to do it. You just try a bunch of values and see what looks best.
@johnkenwiley5883
@johnkenwiley5883 6 жыл бұрын
Great video as usual please keep them coming but how we can make sure that this data follows this particular type of distribution or it is well defined by this curve before making any inference about population from sample when we don't have enough data in our sample ??
@statquest
@statquest 6 жыл бұрын
This is the million dollar question!!!! How do you pick the right distribution? Sometimes it's just known. For example, so many people have flipped so many coins over the years that we know that flipping a coin a bunch of times follows a binomial distribution. Likewise, sometimes we can make a basic assumption, that a coin should land heads 50% of the time on average, and then just work out the math and essentially derive a binomial distribution from scratch. However, sometimes it's not so obvious or easy - as a result, people can use the "wrong" distribution. In my field (genetics), people used a Poisson distribution to model something (RNA-seq data) for years before discovering that the Poisson distribution didn't allow for enough variation in the measurements, so they switched to a negative-binomial distribution. So, here's my advice for selecting the "correct" distribution: 1) See if other people have looked at this type of data before, if so, see what distribution they used. 2) If it's new, you can collect tons of data and that will tell you, or you can think really hard about the data and what's generating it and that might give you a clue about what sort of distribution you should use. When all else fails, there are always "non-parametric" methods that are just statistics methods that do not assume you know what the distribution is.
@johnkenwiley5883
@johnkenwiley5883 6 жыл бұрын
StatQuest with Josh Starmer Hey Josh, thank you so much for clarification. Just want to know a little more about the answer you have given - ● As you mentioned in the 2nd step of process, do try to collect more data that helps you to know about the distribution of data. Right ? What if i don't have access to tons of data ? ● And one more question which i want which is related to normal distribution and that is - when we say the data is normally distributed, it means that our data is following the bell shaped curve but the bell shaped curve in this case represent what the intuitive curve we visualize when we draw the histogram of that data or when we draw the `PDF` of that data ? ● One request from my side - if possible please try to make videos on non parametric tests. Thank you
@Letslearntogetheruzh7
@Letslearntogetheruzh7 4 ай бұрын
0:45
@Usernotknown21
@Usernotknown21 2 жыл бұрын
We need a dedicated playlist on distributions and the different types
@statquest
@statquest 2 жыл бұрын
That's a great idea. Some what you can can be found here: app.learney.me/maps/StatQuest but it could be better.
@liamhoward2208
@liamhoward2208 4 жыл бұрын
Hey josh, do you have a good link to explain how to integrate the Gaussian curve to arrive at probabilities? I would like to learn how to do it by hand. I understand calculus. Thanls again for the great content!
@statquest
@statquest 4 жыл бұрын
I don't have one on hand. However, I remember that it has a trick - you have to do a substitution to make it work. To quote Roger Berger (the guy that taught me this): If you know the trick, integrating the normal curve is easy. If you don't know the trick, you'll never figure it out.
@jinkazama6156
@jinkazama6156 2 жыл бұрын
You are a God for us🥺, I need a help, will u please provide ppt that you explaining, please 🥺
@statquest
@statquest 2 жыл бұрын
I have a book coming out in a few weeks and it contains information from this and a lot of other StatQuest videos.
@bobbyshaftoe45
@bobbyshaftoe45 4 жыл бұрын
boom. that was the ultimate in simple POWer!
@statquest
@statquest 4 жыл бұрын
:)
@Letslearntogetheruzh7
@Letslearntogetheruzh7 4 ай бұрын
1:31
@jamesboekbinder3967
@jamesboekbinder3967 5 жыл бұрын
Love it! Thx!
@maziaretemadi5043
@maziaretemadi5043 5 жыл бұрын
For example I have some data, then in mini tab I find my data distribution, for example it has normal or poisson or F or T distribution. I want to know what I can do or what I understand, when I find my data distribution?
@hetanshthakore5886
@hetanshthakore5886 Ай бұрын
Is statistical distribution same as the histogram or the curve to approximate a histogram?
@statquest
@statquest Ай бұрын
If you normalize your histogram so that the sum of all of the columns is 1, then you it is also a probability distribution.
@leonandorfi5191
@leonandorfi5191 4 жыл бұрын
Hi Josh, sorry for asking a perhaps obvious question, but I've been struggling to wrap my head around the area under the curve part. Shouldn't the probability that a particular value is in the given interval be equal to the area under that part divided by the area under the entire curve. I've seen people explain this with a heads/tails uniform distribution, where two events (heads, tails) are on the x axis, and the probability of that event happening on the y axis (0.5). However, how does this all translate to literal values, such as the number of people with a certain height...
@statquest
@statquest 4 жыл бұрын
The total area under the curve = 1. So, technically, you can either divide by 1 or not, and you will get the same answer.
@leonandorfi5191
@leonandorfi5191 4 жыл бұрын
@@statquest Yeah, thanks, I had a few things mixed up. When you had shown the histogram, I thought of the typical ones where the y axis represented the number of things that fall into each range, not the percentage of things. I was confused as to how the area could be equal to one. Thanks for the answer nonetheless!
@noedits5543
@noedits5543 3 жыл бұрын
@@leonandorfi5191 my two cents. when we are talking about the histogram, then the area is not equal to 1 but when we are talking about the bell shaped probability distribution curve, then the area under the curve is 1. moreover in histogram there is no curve, so we cant say technically "area under the CURVE" for histogram. am i correct? i dont know LOL
@samwinchester1580
@samwinchester1580 5 жыл бұрын
so as I looked at this I tried to figure out why someone just wouldn't use a line graph or such. Then I realized that maybe an important thing to mention is that this histograph is only measuring one characteristic and not 2. So we are not measuring age and height as having some sort of relationship where as you get older your height goes up. But we are just finding how often a certain range of one particular characteristic occurs. If my assumption is correct would this be a good thing to mention in the video? Also would you ever attach some questions along with each video to help provoke thought?
@vincenzo4259
@vincenzo4259 2 жыл бұрын
Thanks
@statquest
@statquest 2 жыл бұрын
Triple bam! :)
@minhajali4124
@minhajali4124 3 жыл бұрын
THANKS!!!!!!!!!!
@statquest
@statquest 3 жыл бұрын
:)
@NidhiSinha4U
@NidhiSinha4U 4 жыл бұрын
Do you tutor for free? I really like how you teach 😁
@statquest
@statquest 4 жыл бұрын
Unfortunately I don't tutor for free. I still have to pay for my rent and food etc.
@NidhiSinha4U
@NidhiSinha4U 4 жыл бұрын
@@statquest lol.. But you can always make an exception.. Hehe
@statquest
@statquest 4 жыл бұрын
@@NidhiSinha4U :)
@Maciek17PL
@Maciek17PL 2 жыл бұрын
How do you get the curve? Even if i have a lot of mesurements what is the formula to draw such a curve?
@statquest
@statquest 2 жыл бұрын
The formula for the normal curve is kind of complicated. However, if you want to learn how to fit it to data, see: kzbin.info/www/bejne/jpbTiaeibr5-rcU and kzbin.info/www/bejne/ep-Zk2yceK6Ipq8
@vivektanwar628
@vivektanwar628 7 ай бұрын
Sir, Can you make videos related to Linear Algebra and Calculus, and add long detailed videos with questions and solutions of stats/algebra/calculus
@statquest
@statquest 7 ай бұрын
I'll keep that in mind.
@vivektanwar628
@vivektanwar628 7 ай бұрын
@@statquest you can start long videos live classes, we are ready to pay for that
@scottwalmsley4813
@scottwalmsley4813 5 жыл бұрын
Great work! Me and colleagues love your videos. Hey, you think sometime you can tackle explaining the Cauchy distribution?
@statquest
@statquest 5 жыл бұрын
I can put that on the To-Do list, but that list is long and it might be a while before I get to it.
@umehabibamalik5850
@umehabibamalik5850 2 жыл бұрын
Sir your way of teaching is very niece. But your lectures on all distribution like poisson distribution is not available😔
@statquest
@statquest 2 жыл бұрын
Noted
@brijesh0808
@brijesh0808 4 жыл бұрын
How do we approximate that curve? I am curious to know how does that curve came from histogram?
@statquest
@statquest 4 жыл бұрын
For details on this, consider watching the StatQuest on the normal distribution: kzbin.info/www/bejne/qKupiWiEjNSdppI
@HunterDriguez
@HunterDriguez 2 жыл бұрын
In the meantime I’m looking for a simple explanation of Weibull distributions that is as easy to understand as this one 🥺
@statquest
@statquest 2 жыл бұрын
bam!
@HunterDriguez
@HunterDriguez 2 жыл бұрын
@@statquest indeed, eloquently spoken
@RNayazTalks
@RNayazTalks Жыл бұрын
Wish you had explained all the fundamentals in a sequence. Like for us as beginners we are unable to identify which video should be watched first? Can you make a sequence or guide us from where to start?
@statquest
@statquest Жыл бұрын
Sure, you can find all of my videos, in sequence, here: statquest.org/video-index/
@SabariGireeswaran
@SabariGireeswaran Жыл бұрын
Sir will you please explain standard deviation a little bit
@statquest
@statquest Жыл бұрын
Sure, see: kzbin.info/www/bejne/rJrOnJytn7aknLc and kzbin.info/www/bejne/iau9Z3qmmMuih7s and kzbin.info/www/bejne/qXm1c5psd81-oKs
@vishalverma-wx7eo
@vishalverma-wx7eo 5 жыл бұрын
Hi Josh! Will you make a statquest on time series analysis anytime in future ?
@statquest
@statquest 5 жыл бұрын
I'm going to try to work on time series in the spring of 2020.
@miaria
@miaria 5 жыл бұрын
Amazing
@kakulavarapusamajna1274
@kakulavarapusamajna1274 5 жыл бұрын
Please explain Time-series forecasting.
@DeViLTh0rn
@DeViLTh0rn 4 жыл бұрын
4:09 ouch, snap..
@kowtharhassan882
@kowtharhassan882 26 күн бұрын
Is there a difference between data distribution and probability distribution?
@statquest
@statquest 26 күн бұрын
yes. the histogram represents the data distribution.
@kowtharhassan882
@kowtharhassan882 23 күн бұрын
@ thank u but is it possible to present raw data from a real life example and take us through them to the point of probability distribution so we could appreciate the usefulness of probability distribution? This would be of great help. Thx
@statquest
@statquest 23 күн бұрын
@@kowtharhassan882 This is actually a topic I cover in my book. We talk about the limitations of just using a histogram and why we would want to switch to a probability distribution.
@kowtharhassan882
@kowtharhassan882 22 күн бұрын
@ I see. Thank u v much
@nikhilwaghalkar40
@nikhilwaghalkar40 2 жыл бұрын
The parameters we are supplying into pdf or pmf are the parameters but actually we are not collecting data for population then how in question we have given that parameters?
@statquest
@statquest 2 жыл бұрын
We can estimate them. For details, see: kzbin.info/www/bejne/rJrOnJytn7aknLc and kzbin.info/www/bejne/iau9Z3qmmMuih7s
@agedvagabond
@agedvagabond 2 жыл бұрын
Only subscribed for the theme song.
@statquest
@statquest 2 жыл бұрын
bam!
@1yyymmmddd
@1yyymmmddd 4 жыл бұрын
Doubt it that it would make any sense to calculate missing values using calculus. For 6" people calculus will give us ~1.5. What if in reality the are 20 of such height?
@statquest
@statquest 4 жыл бұрын
It depends. Of course you can make mistakes, but, believe it or not, height is normally distributed, so we really can use a normal distribution ( kzbin.info/www/bejne/qKupiWiEjNSdppI ) to impute missing values.
@dsd1610
@dsd1610 3 жыл бұрын
한국어로 번역해주신분 진심으로 감사드립니다 ! ( 나머지 20-43 영상도 혹시, 번역 해주실 수 있으실까요?! 부탁드립니다. )
@statquest
@statquest 3 жыл бұрын
If someone can do that for me, it would be aswesome.
@dsd1610
@dsd1610 3 жыл бұрын
@@statquest Someone already did that for you. Episodes from 1 - 20 were perfectly translated into Korean.
@statquest
@statquest 3 жыл бұрын
@@dsd1610 bam!
@ayushguraria2518
@ayushguraria2518 3 жыл бұрын
Before there was BAM, there was DAG.
@statquest
@statquest 3 жыл бұрын
Ha! So true!
@yutaitadori7318
@yutaitadori7318 4 жыл бұрын
❤️
@statquest
@statquest 4 жыл бұрын
:)
@DiegoGuillen-p3z
@DiegoGuillen-p3z Жыл бұрын
hi Josh, I'm enjoying your videos, but I think it's only the US who uses inches/feet units of measurement. The rest of the world (which is the majority of the world's population) is on centimeters/meters. 😅
@statquest
@statquest Жыл бұрын
This is one of the first videos I ever made, and back then, no one watched my videos other than a few friends based in the US. Since then I've changed to using more universal metrics.
@DiegoGuillen-p3z
@DiegoGuillen-p3z Жыл бұрын
@@statquest thank you Josh, I placed an order in Lulu for a copy of your book (I believe it's on its way). You're a good teacher. I like to learn visually, and your diagrams are the best I've found so far.
@statquest
@statquest Жыл бұрын
@@DiegoGuillen-p3z Thank you very much! I really hope you enjoy the book. I believe all the units used in the book are metric... :)
@DiegoGuillen-p3z
@DiegoGuillen-p3z Жыл бұрын
@@statquest Thanks Josh, got the book within a week of placing the order. It is excellent. It reads as easy as reading a comic book, and the images are the best way to explain this topic. I'm also running some examples with TensorFlow, image classification with Fashion MINST, and learning to use the OpenAI API. I'm trying to understand when to use the different activation and loss functions, and architectures for Neural Networks. I didn't have a background in Statistics, so your book helps me with that. But I knew Linear Algebra and Gradients, and was happy to see this again.
@statquest
@statquest Жыл бұрын
@@DiegoGuillen-p3z Awesome! For activation functions, unless you want to do something very specific, people just use the ReLU. To see examples of doing something specific, see my video on LSTMs: kzbin.info/www/bejne/j3TdfWxso7FqoJI
@abhishekchandrashukla3814
@abhishekchandrashukla3814 5 ай бұрын
You are god!!
@statquest
@statquest 5 ай бұрын
:)
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