You can also find this video on his website. Then you can make some questions too so you learn and understand it even better and it provides you videos in the right order! www.khanacademy.org/math/statistics-probability/describing-relationships-quantitative-data/regression-library/v/introduction-to-residuals-and-least-squares-regression
First, THANKS. Second, please resolve 2 issues: 1. Why is the line named Regression Line. From simple English language, I understand the Regression is the opposite of Progression. There should be some thought behind statisticians choosing this word to-draw-a-line-to represent-data. What's that reason? 2. For certain reason, I'm supposed to learn the Partial Least Squares Regression. Importantly, I don't have a background in Statistics. I'm finding it difficult to chart a conceptual-rung-of-ladder to achieve that goal. Can you please guide me to a series of URLs to learn PLS starting from basics through appreciating the concept nicely? This is my need and I'd be grateful if you address it. Thanks and best regards.
Hi Sal! What program are you using to make those straight line "masks" (where you orient the line "mask" 1st and then draw over it) I'm not seeing this feature in Smoothdraw...I see drawing straight lines but nothing that lets you lay down the line "mask" and then draw so it only fills in inside the "mask" (e.g. 1:46 of this video)
If the aim of the least squares is to elevate the residuals to allow them to have a larger impact in the model, why don't we elevate them by 3, 10, 1000...? That would represent an even higher impact in the model
why we are squaring the residuals ?? i case of negative values if we upply mod then it will become positive then what the case with the squares of the residuals
i still don’t get it :/ you lost me at weight =m(height)+b what does that mean!! please am i like severely mentally i’ll and can’t understand rules or was it not directly explained why we suddenly wrote that like the cause not even why but the why for the why
You are probably doing a basic level of this in algebra however, when you get to a proper STATS class this completely changes. STATS is more of a conceptual math rather than you normal algebraic math classes. That is what makes it challenging, the math itself is not too challenging.
I second this. I'm currently taking Stats right now and what makes it so challenging is its a very conceptual form of math. It's not like 1+1=2 at all, it's like learning an alien language. It's very challenging but Khan Academy is the best help you can find on the matter.
in less than 8 mins, you taught me what my teacher couldn't in a whole semester. Thank you sooooo much, sensei!
I feel you
Bro same
you spent a whole semester learning this?
@@joeymorse365 haha
Hmmmm. I wonder how much you actually paid attention in class...
Even though these videos are getting fairly old now I still think they are amongst some of the best on the Internet!
Eh, old or not, math is math. It's not changing any time soon. And I agree, these videos are a godsend
Ive been struggling with this for my exam tomorrow and this really helped me understand it better- thanks man
did you pass?
@@nicholasneuman1587 a few years late
@@idkagoodname7686 a few months early
As a freshie in HS I’m watching this right before midterms and BOY HAS THIS HELPED ME A BIT
seriously I have been following every single video of yours. such great help. so much easier to understand than the lectures and so much fun!!
This helped me understanding linear regression as I am studying machine learning
iv'e been searching everywhere and watching videos for an unambiguous explanation of OLS. Finally someone explains properly
Thank you, this explanation makes the topic much easier to understand!
You taught me what i needed to know in 6 minutes and my math teacher couldnt in 2 months
Always find my answers from here thank you
7:10 The higher the absolute deviation from the line, the heavier the weight, because of squaring
Where is the link to the next video? I suggest you put a link to the next video at the end of the clip.
You can also find this video on his website. Then you can make some questions too so you learn and understand it even better and it provides you videos in the right order!
www.khanacademy.org/math/statistics-probability/describing-relationships-quantitative-data/regression-library/v/introduction-to-residuals-and-least-squares-regression
you never cease to surprise.
khanacademy is the G.O.A.T.
Thanks a lot. That was awosome
thanks I actually have a better understanding now
really thank you for this wonderful video!!
Awsome Vedio. Love from Pakistan.
Always Great Sal , Thanks
Thank you, this was very very helpful
very very clear
Thanks for this guide
Better than my university lecturer.
First, THANKS.
Second, please resolve 2 issues:
1. Why is the line named Regression Line. From simple English language, I understand the Regression is the opposite of Progression. There should be some thought behind statisticians choosing this word to-draw-a-line-to represent-data. What's that reason?
2. For certain reason, I'm supposed to learn the Partial Least Squares Regression. Importantly, I don't have a background in Statistics. I'm finding it difficult to chart a conceptual-rung-of-ladder to achieve that goal. Can you please guide me to a series of URLs to learn PLS starting from basics through appreciating the concept nicely? This is my need and I'd be grateful if you address it.
Thanks and best regards.
Great video THANKS!!!
Great video...good explaination👍🏻
fantastic explanation
It is very useful
Thanks for the useful video. What software,platform you are using for writing is it ipad ?
Great video. Too bad I finished my stats class 2 weeks ago ]= I could of used it.
Nice work!
thank you!
Great video! Very interesting... what software are you using to draw the lines? It seems very flexible and effective.
Pretty sure it's just Khan Academy's software.
I still do not understand the reason why my teachers don't use these as an explanation video instead of something else.
Is there a way to watch these in the correct order? :D
I was trying to figure out the same thing
Thank you.
Reviewing to prepare for my interview tomorrow 😅
How do you calculate the slope "m" in a non cartesian coordinate system ? (non ortho-regular system)
plug it into excel :P
please make tutorial videos on tensor
Hi Sal! What program are you using to make those straight line "masks" (where you orient the line "mask" 1st and then draw over it) I'm not seeing this feature in Smoothdraw...I see drawing straight lines but nothing that lets you lay down the line "mask" and then draw so it only fills in inside the "mask" (e.g. 1:46 of this video)
Someone answer me but basically observed value minus (-) predicted value?
Why are both correlation coefficient and residual "r"?? Isn't that confusing?
Please make the board on light mode.. The writings on the board aren't visible
which software are you using to create all this?
How do you do it when you start with a table of values?
Sydney Adams use the x and y from the table to plot dots on a graph
what is difference between residuals and bias?
If the aim of the least squares is to elevate the residuals to allow them to have a larger impact in the model, why don't we elevate them by 3, 10, 1000...? That would represent an even higher impact in the model
why we are squaring the residuals ?? i case of negative values if we upply mod then it will become positive then what the case with the squares of the residuals
can you please share the link of the next video? i am not able to find it.
What program is this? I am considering using it for sketching my own graphs and such
SmoothDraw 3 i just googled it, and it is free
@@maxrod98 that rhymed
@@nogapres3007 😂😂😂😂😂😂
you forgot to mention about *unobservable* and *observable* values
You're mixing up weight and height at around 3:30.
I have no idea what this video is talking about...... yet.
SarcyseTiranin In which grade are you, and from which land?
you ever find out?
@@hadleyd I don't even remember leaving this comment dude. Lol.
Powlowski Extension
Who's here for finals carnegie
i still don’t get it :/ you lost me at weight =m(height)+b what does that mean!! please am i like severely mentally i’ll and can’t understand rules or was it not directly explained why we suddenly wrote that like the cause not even why but the why for the why
Ratke Fields
5:24, sorta got lost after this, can anyone help me out?
still confused. its too fast for me
70thviewer, 3rd liker, 3rd comment! 😁
where my precalculus gang
im here lol
midterms 😣!
I can literally NEVER understand ANYTHING from their math videos and everyone is saying how simple it is what??
Sal does good in the video, he always does, but i don't know why his voice annoys the heck out of me!
I owe you my degree. Can you be my dad ?
i somehow get more confused listening to you hop around so much. please be more organized
wtf im a freshman learning this and i dont understand, welp
Same..
You are probably doing a basic level of this in algebra however, when you get to a proper STATS class this completely changes. STATS is more of a conceptual math rather than you normal algebraic math classes. That is what makes it challenging, the math itself is not too challenging.
can u tell which part U don't understand or u have no idea what is this thing doing about
I second this. I'm currently taking Stats right now and what makes it so challenging is its a very conceptual form of math. It's not like 1+1=2 at all, it's like learning an alien language. It's very challenging but Khan Academy is the best help you can find on the matter.
It scared me that we have the same name. I’m in 7th tho