Correction: 2:16 I meant to say 10 and 30. However, you should still get the point either way. Support StatQuest by buying my book The StatQuest Illustrated Guide to Machine Learning or a Study Guide or Merch!!! statquest.org/statquest-store/
About 11:19 ... In other words, the results would be if the 2 distributions (i.e., that of the population & that of the samples collected from the population) are overlapping even with high enough statistical power. Would you agree with this?
@@Pl15604 I'm not sure I understand your question, but the more data you collect, the better the estimates tend to be and the more power you have to correctly reject the null hypothesis (if that is something you want do). Having more power to correctly reject the null hypothesis is a way of increasing reproducibility. If you're interested in learning more about the null hypothesis, see: ua-cam.com/video/0oc49DyA3hU/v-deo.html and if you want to learn about power, see: ua-cam.com/video/Rsc5znwR5FA/v-deo.html
I have a slight doubt in liver cell experiment ......if mean is 20 and sd is 10 then mean +/- 2(sd ) is the range for 95% population but in our case 100% population is between 0-40
@@statquest yes but what if the new measurements we took after considering only 2 cells are on left hand side .....then the mean will shift away from actual mean . when you considered 3rd cell or even 4th and 5 th cell you placed those on graph accordingly .....that cannot be the obvious case
The way I PANICKED for a second while my brain was decoding "mRNA transcripts in liver cells". Man, why am I so scared of math I'm weak with relief. Bless you, bless you for the apples.
Means no matter what the estimates of the sample are ....if P values of these samples r nearly equal then ....we have same confidence in their estimations
With all due respect, I love you man. I have been binge watching your videos for sometime now. A big shout out to you and your team who make these videos possible and make them see the lime light. These video's are evergreeeeeennnnn. Your videos have been the learning blocks for some many around the world and many more people to come and start viewing who are not yet born. The content is very easy to understand. The concepts that I had learnt many year's ago when I look at your video's. They just provide me a different perspective all together. Thanks for your effort and time that you have put to get these content on this platform. You have made life easy for so many people. Please keep of doing this great work. Thanks for you and your team. LOVE you man for these fabulous content. Triple BAM!! initially I use to get irritated with the music bit. But now those are the parts which make them more interesting. Sometime I just watch the video for the music piece. Thanks Sir. Please don't stop and keep creating more contents. It will help the future generations to come.
Thank you so much for these videos. They’re the most clearly explained I could find all over the internet. I speak Japanese and Chinese as well. I had looked through all the free sources in those languages. Never ever had I come across anything as clear as this. 🙌
Hey Josh Starmer, you are the miracle I was hoping for, as a physician I do not have time for reading these strange wording and foreign stat books, I stumbled upon your videos randomly while I was looking for a video on ANOVA, now I am a fan, I have started watching your videos from the beginning though they are easy, just to rebuild a stronger base, cannot thank you enough, love and respect, DOUBLE BAM
Your videos are great. since im not a English speaker, it is very helpful you have subtitles like this. I'm studying Psychology and I'm afraid of Statistics. Thank you very much.
Damn you're good! I gave cred in another video, subscribed and decided to do this thing from basic. I'm learning programming on my free time in order to attract women and started to doubt my presumtions when reaching Machine Learning. The note you did, what to think of training dataset and predictions in all of this, helped me more than you can imagine. Now I can run a proper test and measure again if my previous result was true, that women indeed tend to like lazy Swedish programmers more than Portuguese Football stars. Tripple Bam!
@@statquest I started learning ML and came to stats for the same reason. Double Triple bam. I guess if we take the normal distribution of why people start to learn ML, I am sure its a very high probability that we came here to attract the ladieessss
Ha! Good one. One day I want to do a straight up StatQuest on the t-test. However, if you want a sneak peak, check out my series of videos on linear models. Using linear models for t-tests is one of the coolest things.ua-cam.com/play/PLblh5JKOoLUIzaEkCLIUxQFjPIlapw8nU.html
I'm a big fan of you and your channel. I've only joined since last week though, I have fallen in love with statistics that I used to hate. And I love and play ukulele! You're amazing!
You introduce R a lot in your pronunciation for examples you say rrrhhhey insteatd of hey and brraaam instead of baaaam..Hhhhhh. I'm from Algeria and it's a great pleasure to learn both american english and statistics with you
Hey Josh, could you do a new series of videos on probability just like statistics? Your channel will be a one-stop destination for interview prep. Can promise that :P
Congratulations to your content. I am trying to learn statistic not in order to pass in a test ( or stuff like that) but to apply in my job rotine. Your channel focus in statistics concept without a huge load of algebra. I am very happy with this content. Thank you by sharing this aproach of knowledge
I know that this is the beginning of the course and maybe further it will be explained, but I will still leave a small remark. I think that in order to draw a normal distribution in this case one must normalize the data beforehand, because otherwise the fitted normal curve will suppose that negative cases exist. In this example we have 20 as a mean and 10 as a standard deviation. So we have 2.5% probability for negative values, which is impossible. Great course anyway. Listening just for fun.
Be ready for seeing me in anyway at all research areas. I have started learning statistics from best teacher Statquest. I will do a lot of researches with this knowledge. Thanks for your clear English . I am from Türkiye and I have no problem with listening you with my poor English skills. I will focus doing statistics of my own researches. Thanks for all infos. I hope I can keep learning and reach Regression analyzies. I am medical doctor I have to learn using multivariate statistics. Thanks for everything
ok knowledge apart why does this vid have such a difficult lingo I mean there are a lot of things here that could have been easily understood had you used a better i.e. easier words known parses ect thank you for the content btw quite helpful
@@statquest first of all didn't expect you to respond super cool appreciate the hard work. An example of what I was trying to say would be the Gene X example i.e. there were too many spoken words in the Gene X example we could have used simpler lingo meaning as in we could have represented them as different things which you did say in the video ' we could think of it as whatever we want ' and you also gave the 'apple' example but when you explained it, it was hard for me to keep up to be fare I did watch it at 2X speed buy I did go back and forth every now and then whenever I saw mRNA. There were instances when even though you just explained a term it took time for me to register what you meant and you immediately started using that term to explain the next term, I know that's how teaching works buy at 2X speed that was difficult. I like it when the teach/Professor talks fast but explains slow like talk about the same topic giving multiple variations and ways to look at it that also gives time for students to register what the professor just meant to explain. Honestly I think It was just my brain that's the problem here now you but I just can't watch your video at any other speed IDK why, well that just means more back and forth I guess. By the comment earlier I didn't mean make you feel annoyed If that's how it came across, I just watched this video understood about 75-80% at 2X speed got irked as I had to watch It once again appreciated the hard work that went into this(still sore) so wanted to leave a like and comment regardless(help the yt algorithm), and that's why the comment is the way that it is hope you read the this paragraph of a comment love your work and interesting fact you singing is what made me interested in this channel in the first place 👍
Hi statquest, i really enjoy your job it's thousand time more easy to understand what we use when we are not mathematician due to your videos. Your video about t-SNE helped me a lot. Can i abuse and ask if you can do the same on the UMAP ?
A very great explanation as usual. Could you please make a video explaining "Identification of spatially variable genes"? I don't understand at all about spatial variable genes. My background is mathematics, but I want to learn about this spatially variable genes. Thank you so much.
I've wanted to cover these concepts for a long, long time. So I have a series on fundamental statistics coming out this month. I'll return to machine learning at the end of the summer.
I will tell to my teacher to come and learn with me here, rather than wasting our time at university. You have to teach our teachers how to teach. Thank you! Hooray ):
Do I understand it correctly that the more and more data we the more estimated parameters get closer to the mean and STD is an application of central limit theorem?
Does it only work for features that can be ordered? (e.g. by heights, or by number of mRNA transcripts) What if we count things having different colors, for example? (like, 3 green apples, 7 red apples, 5 yellow apples, 1 rainbow apple)
The concept of population and estimated parameters applies to all kinds of data. However, when we have discrete data, like your example, we often have different parameters other than just the mean and variance.
This is a helpful video, but still hope to find an example of discrete probability distribution's parameters.... Such as binomial, poisson, geometric... Parameters... Because parameters distributions are not ebough clear for me
You just made it complicated using the complex example of dna whatever i didnt understand anything because of it otherwise you are explaining very well 😒
I actually made this video specifically for my old co-workers when I worked in a genetics research lab. The goal was to make something that they could easily understand, and since they understood DNA, that was the example I used. That said, at 0:53 I tried to generalize and give other examples for people with different backgrounds.
I have a question. I am having hard time understanding if Probability Distribution is the same thing as Statistical Population? Or, is Population related to all events of interest that have had already happened and that we wish to analyze using statistics. But, since its to costly to gather information/mesurements regarding entire population, we gather a sample by which we estimate population parameters and approximate population curve. When we actually approximate population curve, does that mean we have a approximation Probability Distribution, or is probability distribution concept related to sample space only? If so, how do we calc. probabilities for each element of the population? Sorry for long question, but these terminologies between Probability and Statistics REALLY confuse me. Please help me understand :( Also, really appreciate your work! I am learning A LOT!
8:04 says "the new measurements will come from the same population" sounds like "come from the same distribution?" 1. How do experimenters (both the 1st and subsequent people) know what distribution the samples come from and thus what population/distribution parameters to estimate? 2. What happens when someone later proves that the samples come from some other distribution that's not normal, does that invalidate all previous experiment results? 3. Even within the same family of curves, experimenters may use different tests which have different degrees of freedom, does this cause a reproducibility problem? 4. What does it mean for an experiment to be reproducible, or to have reproduced a previous experiments? Are the estimated population parameters and their confidence intervals part of defining reproducibility?
Han, the good news is that all of your questions can be answered by the Central Limit Theorem. In a nutshell, it says that regardless of the underlying distributions, the means (averages) are normally distributed and this means we can use basic tests (like the t-test) to compare means regardless of the underlying distribution. For more details on the Central Limit Theorem, see: ua-cam.com/video/YAlJCEDH2uY/v-deo.html
Correction:
2:16 I meant to say 10 and 30. However, you should still get the point either way.
Support StatQuest by buying my book The StatQuest Illustrated Guide to Machine Learning or a Study Guide or Merch!!! statquest.org/statquest-store/
About 11:19 ... In other words, the results would be if the 2 distributions (i.e., that of the population & that of the samples collected from the population) are overlapping even with high enough statistical power. Would you agree with this?
@@Pl15604 I'm not sure I understand your question, but the more data you collect, the better the estimates tend to be and the more power you have to correctly reject the null hypothesis (if that is something you want do). Having more power to correctly reject the null hypothesis is a way of increasing reproducibility. If you're interested in learning more about the null hypothesis, see: ua-cam.com/video/0oc49DyA3hU/v-deo.html and if you want to learn about power, see: ua-cam.com/video/Rsc5znwR5FA/v-deo.html
I have a slight doubt in liver cell experiment ......if mean is 20 and sd is 10 then mean +/- 2(sd ) is the range for 95% population but in our case 100% population is between 0-40
@@statquest yes but what if the new measurements we took after considering only 2 cells are on left hand side .....then the mean will shift away from actual mean . when you considered 3rd cell or even 4th and 5 th cell you placed those on graph accordingly .....that cannot be the obvious case
The way I PANICKED for a second while my brain was decoding "mRNA transcripts in liver cells". Man, why am I so scared of math I'm weak with relief. Bless you, bless you for the apples.
bam! :)
Means no matter what the estimates of the sample are ....if P values of these samples r nearly equal then ....we have same confidence in their estimations
BAM!
:)
this is pure dripping free gold
:)
My thoughts exactly.. I mean I am sure the universe is paying me back for all those hundreds of boring unproductive lectures and cruel profs I endured
With all due respect, I love you man. I have been binge watching your videos for sometime now. A big shout out to you and your team who make these videos possible and make them see the lime light. These video's are evergreeeeeennnnn. Your videos have been the learning blocks for some many around the world and many more people to come and start viewing who are not yet born.
The content is very easy to understand. The concepts that I had learnt many year's ago when I look at your video's. They just provide me a different perspective all together.
Thanks for your effort and time that you have put to get these content on this platform.
You have made life easy for so many people. Please keep of doing this great work. Thanks for you and your team. LOVE you man for these fabulous content.
Triple BAM!! initially I use to get irritated with the music bit. But now those are the parts which make them more interesting. Sometime I just watch the video for the music piece.
Thanks Sir. Please don't stop and keep creating more contents. It will help the future generations to come.
Thank you very much! :)
Thank you so much for these videos. They’re the most clearly explained I could find all over the internet. I speak Japanese and Chinese as well. I had looked through all the free sources in those languages. Never ever had I come across anything as clear as this. 🙌
Hooray! I'm glad the videos are helpful.
"Imagine mRNA transcripts and genes"
😱😱😱😱
"Imagine apples and grocery stores"
🎉🎉🎉🎉
:)
Hey Josh Starmer, you are the miracle I was hoping for, as a physician I do not have time for reading these strange wording and foreign stat books, I stumbled upon your videos randomly while I was looking for a video on ANOVA, now I am a fan, I have started watching your videos from the beginning though they are easy, just to rebuild a stronger base, cannot thank you enough, love and respect, DOUBLE BAM
Hooray!!! Thank you very much! :)
Finallyyyyyy.... It was longgggg breakkkkk...
MEGABAMMMMMM
Your videos are great. since im not a English speaker, it is very helpful you have subtitles like this. I'm studying Psychology and I'm afraid of Statistics. Thank you very much.
I'm glad my video is helpful. :)
Is statistics also used in Psychology and in what way? If u dont mind sharing your thoughts... Thank u
@@anitadeshpande2696 Statistics are highly relevant to psychology researchers and studies. Less utilized for practitioners though
Just started binge watching StatQuest and this is my 6th video. :D
BAM!!!!
Awesome!!!! I'm so glad you like my videos!!! :)
I'm a bio/stats major in college now and your videos are the best! Thank you soooo much for providing quality content.
Awesome! Good luck with your major.
I came for the stats. I stayed for the jingles.
bam! :)
This is my third try tackling statistics, my old nemesis - only this time, I'll actually succeed. Thank you!
Hooray!!! Thank you so much for supporting StatQuest and good luck! Hopefully the 3rd time will be the charm! :)
Minor correction: "between 10 and 30" 2:14
Thanks! There's always one or two things like that. Oh well.
@@statquest Yeah, but still a great video!
Dude you're an amazing teacher. Thank you for this!
Thank you! :)
Thank you for this I'm a med student and this helped me through a lot of confusion.
Awesome! :)
med students in stats, India is now changing!
Damn you're good! I gave cred in another video, subscribed and decided to do this thing from basic. I'm learning programming on my free time in order to attract women and started to doubt my presumtions when reaching Machine Learning. The note you did, what to think of training dataset and predictions in all of this, helped me more than you can imagine. Now I can run a proper test and measure again if my previous result was true, that women indeed tend to like lazy Swedish programmers more than Portuguese Football stars. Tripple Bam!
I'm glad we are both interested in statistics for the same reason. :)
@@statquest I started learning ML and came to stats for the same reason. Double Triple bam. I guess if we take the normal distribution of why people start to learn ML, I am sure its a very high probability that we came here to attract the ladieessss
@@bharathsf Totes!
The question is, how confident are you that you will deliver the p-value StatQuest? Love your videos!
Ha! Good one. One day I want to do a straight up StatQuest on the t-test. However, if you want a sneak peak, check out my series of videos on linear models. Using linear models for t-tests is one of the coolest things.ua-cam.com/play/PLblh5JKOoLUIzaEkCLIUxQFjPIlapw8nU.html
I'm a big fan of you and your channel. I've only joined since last week though, I have fallen in love with statistics that I used to hate. And I love and play ukulele! You're amazing!
Thank you very much! :)
I WAS CRACKED UP when you're using mRNA as example and suddenly change it to apple, thats hillarious thanks for making me laugh TuT
:)
You introduce R a lot in your pronunciation for examples you say rrrhhhey insteatd of hey and brraaam instead of baaaam..Hhhhhh. I'm from Algeria and it's a great pleasure to learn both american english and statistics with you
bam! :)
Amazing!!! I finally understand the meaning of p-values and confidence intervals.
Hooray! :)
Triple Bam !! This is the best Statistics course I have ever came across. Subscribed :)
Wow, thanks!
Doubt: Is a histogram and a distribution the same? Sorry for a dumb question. :(
See ua-cam.com/video/qBigTkBLU6g/v-deo.html and ua-cam.com/video/oI3hZJqXJuc/v-deo.html
wonderful lectures. It was title that attracted me to your videos 'clearly explained ' as I was mostly looking videos with high numbers of viewers.
Thank you! :)
what a way of giving detailed and brilliant explanation!!!!
Superb....
BAMMMMM!!!!!.......
Thank you very much! :)
Thank you for such god content. I hope such comments motivate you !!
Thank you! Yes! They motivate me! :)
wow what a relatable example with genes and stuff. genious !
Thanks!
Hey Josh, could you do a new series of videos on probability just like statistics? Your channel will be a one-stop destination for interview prep. Can promise that :P
I'm planning on doing a few videos on probability soon.
Congratulations to your content. I am trying to learn statistic not in order to pass in a test ( or stuff like that) but to apply in my job rotine. Your channel focus in statistics concept without a huge load of algebra. I am very happy with this content. Thank you by sharing this aproach of knowledge
Thanks! I'm glad my videos are helpful.
this video just made me to learn more and more about statastice BAM!
bam! :)
I know that this is the beginning of the course and maybe further it will be explained, but I will still leave a small remark. I think that in order to draw a normal distribution in this case one must normalize the data beforehand, because otherwise the fitted normal curve will suppose that negative cases exist. In this example we have 20 as a mean and 10 as a standard deviation. So we have 2.5% probability for negative values, which is impossible.
Great course anyway. Listening just for fun.
Be ready for seeing me in anyway at all research areas. I have started learning statistics from best teacher Statquest. I will do a lot of researches with this knowledge. Thanks for your clear English . I am from Türkiye and I have no problem with listening you with my poor English skills. I will focus doing statistics of my own researches. Thanks for all infos. I hope I can keep learning and reach Regression analyzies. I am medical doctor I have to learn using multivariate statistics. Thanks for everything
Good luck! :)
Please more "bams" in your vid...Bam!
Bam! :)
Need these slides for revision
Never seen such a cool way to make statistics so approachable! super work StatQuest team @North Carolina
Thank you! :)
Glad to see you update this video list. Your videos help me a lot. Thanks Josh. Love you.
Thank you! :)
In the stats field, you beats Khan Academy dude!
Thank you! :)
So glad I found your channel, I really really wish I found it earlier. But here I am, so grateful for all of your videos, thank you so much!
Bam! :)
I felt the triple bam after the p-value and confidence interval bit!
:)
Everybody love somebody, Thank you, Sir
Thanks!
ok knowledge apart why does this vid have such a difficult lingo I mean there are a lot of things here that could have been easily understood had you used a better i.e. easier words known parses ect thank you for the content btw quite helpful
Can you give me some examples of the difficult lingo?
@@statquest first of all didn't expect you to respond super cool appreciate the hard work.
An example of what I was trying to say would be the Gene X example i.e. there were too many spoken words in the Gene X example we could have used simpler lingo meaning as in we could have represented them as different things which you did say in the video ' we could think of it as whatever we want ' and you also gave the 'apple' example but when you explained it, it was hard for me to keep up to be fare I did watch it at 2X speed buy I did go back and forth every now and then whenever I saw mRNA.
There were instances when even though you just explained a term it took time for me to register what you meant and you immediately started using that term to explain the next term, I know that's how teaching works buy at 2X speed that was difficult. I like it when the teach/Professor talks fast but explains slow like talk about the same topic giving multiple variations and ways to look at it that also gives time for students to register what the professor just meant to explain. Honestly I think It was just my brain that's the problem here now you but I just can't watch your video at any other speed IDK why, well that just means more back and forth I guess.
By the comment earlier I didn't mean make you feel annoyed If that's how it came across, I just watched this video understood about 75-80% at 2X speed got irked as I had to watch It once again appreciated the hard work that went into this(still sore) so wanted to leave a like and comment regardless(help the yt algorithm), and that's why the comment is the way that it is hope you read the this paragraph of a comment love your work and interesting fact you singing is what made me interested in this channel in the first place 👍
@@swagatrout3075 Thank you!
Waiting for Fourth BAM!
:)
i'm here because i like the way you sing🤣
bam! :)
Love the "I" friendly approach you have in every video 🤩
Thanks! :)
the “bam.” Caught me off guard 😹😹😹
:)
Nice tutorials, how did you create a graphs? I need to create a similar to yours but didn't find any good tool.
I draw them by hand in keynote.
This is a really nice resource to quickly revise statistical concepts and that too visually, so this video is Bam!😁👍🏽
BAM! :)
Hello Josh, your videos are awesome.
Can you make videos on q Value and Posterior Error Probability? It will be really helpful.
Thanks
I've made one on FDR, which is related to q-values: ua-cam.com/video/K8LQSvtjcEo/v-deo.html
thats a lot of mRNA transcripts!
:)
Thanks!
Holy smokes!!! Thank you so much for supporting StatQuest!!! TRIPLE BAM!!! :)
Thanks!
WOW! Thank you so much for your support!!! BAM! :)
Your video tutorials are BAAAAMMMMMMMM !!
Bam! :)
Finding this channel for the first time feels like finding El-Dorado
bam!
BAM!
Bam! :)
Hi statquest, i really enjoy your job it's thousand time more easy to understand what we use when we are not mathematician due to your videos. Your video about t-SNE helped me a lot. Can i abuse and ask if you can do the same on the UMAP ?
I just want to say Thank You!!!
Thanks!
God bless you for this. This is real education :)
Thank you! :)
Double BAM!!! Thank you for these useful refreshers.
Thanks!
What an awesome explaination , Thank you dear Professor
Thanks!
everyone whose learning statistics should go through this at least once!
Thanks!
A very great explanation as usual. Could you please make a video explaining "Identification of spatially variable genes"? I don't understand at all about spatial variable genes. My background is mathematics, but I want to learn about this spatially variable genes. Thank you so much.
Dude your video saved my grades! Youre a life saver!! ❤️❤️❤️❤️
You're welcome!!
Best stats teacher ever!!!!!! Thanks Josh 😄😄
Thank you! :)
I ironically love this channel. Just became a state major after switching from cs.
Awesome! :)
y'all here because online learning is difficult or is that just me?
!!!!!!!!!!!!!!!!!!!!!!BAAAAAAAAM!!!!!!!!!!!!!!!!!!!!!
:)
Why sudden deviation... Ada boost... Gradient boost... Then this one
I've wanted to cover these concepts for a long, long time. So I have a series on fundamental statistics coming out this month. I'll return to machine learning at the end of the summer.
pl do one on SVM soon
@@statquest greatt.... Excited to follow along
Really Fantastic as usual! Thanks a lot Sir
Thank you!
I will tell to my teacher to come and learn with me here, rather than wasting our time at university.
You have to teach our teachers how to teach.
Thank you!
Hooray ):
I'm glad my videos are helpful! :)
There are really helpful !
One question : what did you use to make these beautiful slades?
@@nit235 Keynote
"Most cells had between 20-30 transcripts" (2:20), do u mean 15-25?
yep! oops. ;)
Thank you!!❤️🔥
:)
Thanks a lot sir!
Thanks!
omg i love ur channel!! glad i found it :D
Hooray! :)
THANKS FOR THESE SUPER HELPFUL VIDEOS!
Glad you like them!
Do I understand it correctly that the more and more data we the more estimated parameters get closer to the mean and STD is an application of central limit theorem?
The more data we have, the better we can estimate parameters and less there will be less variation in those estimates if we do them a bunch of times.
The content is really amazing I need these slides to be a reference to me later when I need to remember something.
How can I get these slides?
This is (and a lot of other stuff) covered in my book: statquest.org/statquest-store/
This was the best intro of the whole series
Bam!
Triple BAM!!!
:)
I hate math 😫
:(
Lovely vedios
Thank you!
Does it only work for features that can be ordered? (e.g. by heights, or by number of mRNA transcripts)
What if we count things having different colors, for example? (like, 3 green apples, 7 red apples, 5 yellow apples, 1 rainbow apple)
The concept of population and estimated parameters applies to all kinds of data. However, when we have discrete data, like your example, we often have different parameters other than just the mean and variance.
This is a helpful video, but still hope to find an example of discrete probability distribution's parameters.... Such as binomial, poisson, geometric... Parameters... Because parameters distributions are not ebough clear for me
I have a video about the binomial distribution here: ua-cam.com/video/J8jNoF-K8E8/v-deo.html
Yes I saw it and was very helpful , but actually I talk about parameters.... I wanna find a video about thr PARAMETERS of probability distribution
Has un vídeo sobre como calcular las probabilidades de una funcion de densidad usando la formula e integrando.
I'll keep that in mind.
You just made it complicated using the complex example of dna whatever i didnt understand anything because of it otherwise you are explaining very well 😒
I actually made this video specifically for my old co-workers when I worked in a genetics research lab. The goal was to make something that they could easily understand, and since they understood DNA, that was the example I used. That said, at 0:53 I tried to generalize and give other examples for people with different backgrounds.
@@statquestno sir!! I understood the second time I watched the video
Sir please explain the same concept using business data like sales or brand ratings.
Excelent!
Thanks!
I love you.
:)
I suppose this mean that 5% of the population has >40 mRNA as the range of 2SD ends up being 0-40.
I have a question. I am having hard time understanding if Probability Distribution is the same thing as Statistical Population?
Or, is Population related to all events of interest that have had already happened and that we wish to analyze using statistics. But, since its to costly to gather information/mesurements regarding entire population, we gather a sample by which we estimate population parameters and approximate population curve.
When we actually approximate population curve, does that mean we have a approximation Probability Distribution, or is probability distribution concept related to sample space only? If so, how do we calc. probabilities for each element of the population?
Sorry for long question, but these terminologies between Probability and Statistics REALLY confuse me. Please help me understand :(
Also, really appreciate your work! I am learning A LOT!
I have a StatQuest that might answer your question. It is called: What is a Statistical Distribution: ua-cam.com/video/oI3hZJqXJuc/v-deo.html
Amazing😍
Thanks 😄
Amazing videos !!! Finally I got, thanks, thanks a lot Dr. Starmer. Some suggest reading s or videos ? Definitely the best !!!
For more videos, see: statquest.org/video-index/
This is the same with estimation of parameters in statistic and probability?
Yes
8:04 says "the new measurements will come from the same population" sounds like "come from the same distribution?"
1. How do experimenters (both the 1st and subsequent people) know what distribution the samples come from and thus what population/distribution parameters to estimate?
2. What happens when someone later proves that the samples come from some other distribution that's not normal, does that invalidate all previous experiment results?
3. Even within the same family of curves, experimenters may use different tests which have different degrees of freedom, does this cause a reproducibility problem?
4. What does it mean for an experiment to be reproducible, or to have reproduced a previous experiments? Are the estimated population parameters and their confidence intervals part of defining reproducibility?
Han, the good news is that all of your questions can be answered by the Central Limit Theorem. In a nutshell, it says that regardless of the underlying distributions, the means (averages) are normally distributed and this means we can use basic tests (like the t-test) to compare means regardless of the underlying distribution. For more details on the Central Limit Theorem, see: ua-cam.com/video/YAlJCEDH2uY/v-deo.html
Thanks
:)
You are really great bro. Helped a lot
Thank you! :)
please dont use GENE examples , Use more generic examples.
I'll keep that in mind.
Tx sir
Glad you are enjoying my videos!