And here i am, 10 years after this was posted, learning more here in 12 min than my course in an hour Thank u from the heart of mine, khan academy !
@vincentdrew21943 жыл бұрын
I played this at 2x speed to learn it in 6 min
@owenpatenaude10723 жыл бұрын
Same lo
@Tyler_Lance2 жыл бұрын
@@vincentdrew2194 That’s not smart, you might not understand everything because your brain can’t catch up. Don’t try to get everything done as quick as possible, sometimes it causes mistakes
@rapemap2 жыл бұрын
reviewing simple explanation after hours of complicated lesson often give you a new understanding and you feel enlightenment.
@sachimoo8 жыл бұрын
I am taking a Statistics class online and YOU are by far the BEST thing I've come across! Your explanations are clear and thorough. You cut through all the STATISTIC jargon and allow the student to conceptualize the theory of basic statistical analyses & problems. You are truly Gifted!Thank you for sharing your knowledge and Passion.
@coyomedia13103 ай бұрын
right! thats facts! my statistics professor talks so confusing and quickly! I had no choice but to find other videos to study for our weekly concepts! I couldnt go out like that!
@murators47322 жыл бұрын
Please never delete your videos. I am also 10 years after posting learning this stuff and you are the only one who explained it the way i could understand and use it. Youe helped, help and will help millions of people. Thank you
@harijsijabs242010 жыл бұрын
This made so much more sense than my university professor. Thanks a lot!
@edthoreum76257 жыл бұрын
great work but #are so small and the board is so dark?
@Anonymous-ko5ug7 жыл бұрын
Harijs Ijabs why are you learning this in university? I'm learning this in the 6th grade
@FloydFilmz6 жыл бұрын
bcuz we all have specific concepts we are learning in college such as criminal justice or law or engineering. But there are a few courses that you have to repeat that u've already learned in middle and highschool. Thats why kid.
@azimtwice6 жыл бұрын
+FloydFilmz why'd we pay thousands to repeat what we've already learned?
@oliviaso97265 жыл бұрын
@@azimtwice idk
@krossthug10 жыл бұрын
i cried cos this helped me so much
@Zmunk199 жыл бұрын
did it sound something like trololollololololoololollololol
@videogamejo9 жыл бұрын
***** Right? Isn't Khan amazing? Khan Academy makes me realize that math isn't so bad when explained properly. So many teachers and books explains things in a cryptic manner. Khan explains this stuff in layman's terms and it just clicks.
@madrid77907 жыл бұрын
Did you pee yourself too?
@ammaraa32877 жыл бұрын
Same!!! In class I was like what is this even and here I understood it 😂🌸🌸
@memoo21337 жыл бұрын
JJ not math, its statistics.
@StopwatchRobert11 жыл бұрын
You know Mr. Khan, you and you alone are the reason this program works so well. What you teach is no different than a university professor, but the way you teach it squeezes more information into a 12 minute video than I'll get in a 50 minute lecture, and I understand it much better. I think I speak for everyone when I say I wish you were my teacher, you'd be absolutely perfect at it.
@Supremepie2 жыл бұрын
Khan academy... helped my 14 year old self, and still helping me at 24 years old, God bless you.
@0nly1w0rld3 жыл бұрын
This guy has done so much on Khan Academy, he should be nominated for the Nobel Prize in Education. If there isn't such a category, they should create one
@fabbabs10 жыл бұрын
I have studied these concepts in at least three different classes and never understood them as well as I do now. Thank you.
@kk84908 жыл бұрын
Oh my god yes. Not all superheroes wear capes
@lkerzgrl245 жыл бұрын
Plot twist: he was wearing a cape
@whitewalker6085 жыл бұрын
@@lkerzgrl24 Plot twist. OP is talking about Iron Man.
@kavyasoni13910 ай бұрын
@@whitewalker608plot twist he is talking about Superman 😂
@Clurf5 ай бұрын
Plot twist. The entire plot has become twisted.
@jeremyrodriguez49893 жыл бұрын
Currently a history major with a minor in political science. Took statistics in high school and again in college but this just made so much sense. To anyone reading the comments, watch frequency tables first and then start looking at this video. It takes15 minutes for both but you'll appreciate so much math quickly.
@BrianKouhi8 жыл бұрын
Amazing teaching skills, i've struggled to understand this in university for the past 2 months, with my prof being of little use. first time watching this 10min video and i completely understand it now! Thank you!
@122willman6 жыл бұрын
just goes to show these universities are so overrated. they don't teach anymore. About to graduate myself and it is so funny what university teaching has become.
@HannanAli3 жыл бұрын
If only you guys could see how the teacher teaches this subject at my university...You'd hate this subject i guarantee. She straight up reads solutions from the guide book without explaining whats happening or why we are doing anything.... Thank You So Much Khan Academy!!!
@coolshante70935 жыл бұрын
There am I scrolling down and liking every comment coz I can relate to them
@dotted_stains27922 жыл бұрын
Seeing how you have 142 likes....... I wonder
@nelsoncastillo78889 жыл бұрын
Your method of teaching is comprehensible, thanks
@Notabot20006 жыл бұрын
Learned more with this video than the first 3 weeks of college with my useless professor
@ZoZo-sk7mq5 жыл бұрын
Hold on you r learning this in Uni then why am i learning this year 9 or 9th grade AUstralia IS messed up
@herat31585 жыл бұрын
College? We're learning this in grade 9 though
@ZoZo-sk7mq5 жыл бұрын
@@herat3158 thats what i said but in australia we call college uni
@lily-er5xt5 жыл бұрын
I’m learning this in 7th
@gacharaeztrid76204 жыл бұрын
@@lily-er5xt yeah, same.
@coreyw21245 жыл бұрын
You're so clear and cut through the jargon so well that it's actually making me mad. I spent so much time in college trying to understand this stuff and if I would have just watched these videos instead I can't even think about the amount of time and effort I would have saved. Great stuff
@Lani27224 жыл бұрын
Everyone is talking about their professors in university and how they're useless like 7-2 years ago I'm here in 2020 trying to figure this out in high school because I hate remote learning.
@Lillith90084 жыл бұрын
that sounds very difficult dear, i can't even imagine having to do high school right now. i'm sorry you have to go through that
@gracemostek19764 жыл бұрын
same
@janaaa93094 жыл бұрын
me too
@ikyouknoweknow3 жыл бұрын
@@Lillith9008 thank u for being compassionate
@fangtzukang61633 жыл бұрын
The most helpful explanation about standard deviation I've ever watched. Thank you so much, Sal!!!! You're the best math teacher in the universe.
@saulmatakarawa92368 жыл бұрын
Very well explained. However, I find another explanation stating that the denominator in variance calculation should be n-1, which in this case should be 4 (5-1=4). Please clarify. Thanks
@manveersingh78428 жыл бұрын
+Saul Matakarawa I believe n-1 is to calculate the sample variance. Not 100% sure, but from what I remember.
Sample Variance’s denominator is n-1. Population variance’s is n
@vijayanandvadhyar72245 жыл бұрын
@@pppkaew4297 thanks
@HAMID___6 жыл бұрын
Thank you u explained it so seamlessly 😭👏🏽. U save me from failing a test
@coronnation88542 жыл бұрын
You have been helping me pass university classes for the last decade. You're a very important person in the world.
@wiifreak91111 жыл бұрын
This is the "Population Standard Deviation" For the "Sample Standard Deviation" we replace n with (n-1) to ensure that all desirable properties of an estimator are retained.
@bryanjy79237 жыл бұрын
From algebra to calculus, to history, and also to statistics?! WoW! so amazed. Is Sal Khan the one that discuss in most these videos? Is he a genius? Or other way around.
@moizkhalid27145 жыл бұрын
Any time you feel struck in mathematics, you tune into Khan Academy where Sir Sal explaining the concept so easily.Another day is saved,thanks to Khan Academy.
@yrebrac4 жыл бұрын
Khan, you legend. Needed a quick primer on this topic. You are the man.
@user-zr4od4qg7s5 жыл бұрын
I been sick for the past week and my friends told me about this because they are learning at school so I got worried since they said there's a test tomorrow but this helped a lot THANK YOU now I'm ready
@minhazulislam46824 жыл бұрын
hopefully you found that useful... it was the most easiest explanation I got on the internet..My university life started a few months back (online semester ft. Corona) and I am taking a Stat course right now. My teachers explanation was really vague, it's like he(my teacher) is trying to hide something from me. but this actually cleared everything up. Thanks Salman. One day, I will be great teacher like you inshaallah.
@mariellesiapno24945 жыл бұрын
Thank you so much for this!!!! ♥️ You’re a blessing! ♥️🙌🏼
@fancydeer3 жыл бұрын
Seriously saving me in my college class. I didn't understand any of this, it's amazing what a difference a GOOD teacher makes.
@aishaabaniel68275 жыл бұрын
Tanx God i found the best teacher here even you tube.nung nag aral ako walan akong naintindihan.thank you so much Sir for your help.God bless u Sir
@williammagdales233012 жыл бұрын
Dude, now im ready for my periodical test, tommorrow !! I really appreciate you pal !!!
@sameedsherazi4 жыл бұрын
I don't know why but I am in love this guy's voice. And yeah the lectures being the first.
@marysadek96834 жыл бұрын
This is amazing! I thought I hated stat until I watched the video. It turns out I have a bad teacher lol . The teacher who made this video made it simple and conveyed the meaning in a great way! Thank you:)
@renatarech24296 жыл бұрын
Oh wow!! I don't normally comment of KZbin videos, but you just took something that I found so confusing and complex and broke down until it was simple! Thank you ever so much
@Abhishektheunofficial7 жыл бұрын
Thank you so much. This is so helpful. I highly appreciate the time and energy taken to prepare this to make this available for free.
@pietatk5 жыл бұрын
I don't have enough words to thank you! You helped so many people, including me. Truly, thanks so much :)
@gracefredericks21266 жыл бұрын
This is so helpful!! THANK YOU. You actually repeat what you're doing to help to get it in our brains and for me, it works! I didn't have to keep scrolling back. (And it also helps that you don't have a ridiculously boring monotone voice like a lot of the people who make these maths videos do)
@bsayah13 жыл бұрын
Oh my god, this never made so much sense before...thank you so much!
@danamclemore38055 жыл бұрын
You rock - as usual. You are sooo amazing.how many people have you helped ??? You will never know
@Czathero12 жыл бұрын
OMG! I love you! I finally understand this now! So happy!
@silentlessons4221 Жыл бұрын
Khan academy at it again with an awesome explanation and breakdown of statistics. Thanks very much.
@ntbarnes6563 жыл бұрын
such a great breakdown!! thank you!! you explained every step so that I understand what I am using to get each answer.
@jekamiahruiz65005 жыл бұрын
This is cool. You have helped me a lot. Thanks to you 😊 I've also watched your videos on several topics in physics. Galing nyo po!
@IIXIXOXIXII12 жыл бұрын
You spoke at a great pace and very clearly. This video was very helpful. I would like to know what the answer to evilshenanegans' question is though.. and william's question on negative numbers and range...
@djchillsbx112 жыл бұрын
yes indeed this explians it a bit better than all the other class material. Thanks!
@sabrinadiego35866 жыл бұрын
You did a great job. I followed the lecture and I could not understand. I saw your video only once and I realize that it is very easy. I think because you explain very well. thank you very much.
@MichealOliver-y5q4 ай бұрын
Fantastic explanation I've always found range, variance, and standard deviation frustrating. This video really breaks down these concepts in a way that's easy to grasp. Please share more such videos. For anyone else struggling, this video is a game-changer. Plus, I've also been using free textbooks from SolutionInn to better understand these concepts, and they've been a huge help alongside this video. Pairing it with resources like SolutionInn, Chegg, or Course Hero offers extra practice and explanations that solidify your understanding. Thanks for making this topic less daunting!
@ioannismarkoulakis49787 жыл бұрын
I normally just like the video but, this one deserves a comment. Good job, great explanation!
@Mahmoud-ys1kt Жыл бұрын
Simply , Its Great . Thank you
@Naked_Snake12 жыл бұрын
Haven't really used Khan Academy before, but I used this for Economics and makes perfect sense. Thank You.
@bcasarez13 жыл бұрын
The video is correct because he dealing with a population data set (also evident by the use of the sigma symbol). He explains this @ 4:45 - 5:09. You only use (n-1) when you are dealing with a sample data set (where you use "s" and not sigma).
@kevinrandalrulach2 жыл бұрын
I know these stuff 100%, but I need to understand these stuff with 300% confidence. Thanks for the upload.
@saadhashmi5113 жыл бұрын
Found this vedio in my 3rd year of med school and was saved in Biostatistics. Alhamdulillah
@waterfairy2011 Жыл бұрын
First time in my life I understand what is variance. Thank you so much!!!
@tasbeehdeyaa4 жыл бұрын
Thank you so much. This.. This is exactly what I needed. It made me realize I'm not slow nor stupid it just depends on who the teacher is.
@saravaliyeva2591 Жыл бұрын
Thank you so much for your video and explanations .I started Statistics classes recently and i also learn more from here than from my professor .It helps really thanks a lot again
@josecuervo16465 жыл бұрын
I need Sal to take my SAT for me.
@hoomanazizi89697 ай бұрын
I studied finance in uni and our master could not explain it as simple as this in a whole semester. thanks
@hubdarali86334 жыл бұрын
I have learned this topic different videos lecture but your lecture is conceptualize and clear my all confusion...thanks❤❤
@muhammedrajab23013 жыл бұрын
Awesome video and great explanation. But one quick correction, 9:48 Distance can't be negative or zero.
@xsauce38586 жыл бұрын
I was out of class with my friends when my lecturer was teaching this thank you so much.
@marj7368 жыл бұрын
Khan, you are a life saver!
@trombonetribute64335 жыл бұрын
It's summer I'm 13 and I'm learning it's my best summer yet I understood standard deviation from my math book I just didn't see that variation was standard deviation without it being square rooted it's so easy
@denzilseukanundun5402 жыл бұрын
I need this channel for Data Science! Thank you Khan Academy!
@hugojj1017 жыл бұрын
Ha, watched Khan academy vids when I was 10 and here I am 6 years later using them to help me with my as levels
@XinhLe8 жыл бұрын
Thanks so much (from Southern hemisphere)!
@regineyu347 жыл бұрын
Your videos really help me get through my statistics class, thank you 💕
@A11Omar12 жыл бұрын
very useful. I'm taking QUAN201 and I wish I had you as my instructor 'cause mine really sucks
@timenotime5 жыл бұрын
this is SUCH a good video. i am doing a course in stats for uni and struggling so much because it's been years since i did maths (never been good at it) and i'm so happy i found this video because it's cleared up so much of what was confusing me about this whole SD vs. variance business
@88spaces5 жыл бұрын
Your explanation is very clear and simple to understand. Thank you.
@samizaki71657 жыл бұрын
The perfect way to understand the variance and the standard deviation ... Thanks KHAN Academy
@raquelporras58957 жыл бұрын
Is it just me or does he sound like old Ted Mosby? Great video btw, I've been watching them before class and they are super helpful!
@Naturenest7-v6k3 жыл бұрын
Thank you so much, 🙏 your channel is the best, this makes so much sense than my Uni professor!
@dawoodali46053 жыл бұрын
Thank you soo much man!!!! Came in clutch!
@nikkishivoy99212 жыл бұрын
The video helped me a lot in understanding Standard Deviation.
@hariiiprasath2 жыл бұрын
Here I am, trying to actually understand these concepts 8 years after school, and this 12 min video made me feel like my schooling had failed me.
@MeganMcken13 жыл бұрын
I really appreciate these tutorials. I'm not a very logical/math thinker so it is nice to confirm some of my hesitancy.
@mspinkstar123413 жыл бұрын
This is one of the advantages of being Asian=)) although it is diffuclult it would never make my mind explode. I am learning this in my statistics class in 8th grade and would have an exam tom. Your lesson is worth 2 classes and chen better=)) I love KZbin!
@krishna_kk0075 ай бұрын
I calculated -20 squared and it was -400. I am not saying you're wrong I just doubt that equation. But other than that you're an amazing teacher. Keep up the excellent work Khan!
@kishwarbhuiyan7433 жыл бұрын
This video has helped me a lot to understand standard deviation and variance.Thanks a lot Khan Academy.
@LaBam8511 жыл бұрын
A tutorial on physics? yep, statistics? why not? youre the man
@ppl_call_me_tima2 жыл бұрын
Thanks a lot! Really simple and useful comparitive explanation!
@eduugr7 жыл бұрын
Thank you. You are really good explaining !!
@johnpastorick4443 жыл бұрын
Thank you for making this more clear than the professors we pay thousands of money to
@gurpreetbhalla14 жыл бұрын
your videos are too good and i think u are doing a great job
@ezzrivera13556 жыл бұрын
Thank youuu omg I can take my exam tomorrow in stat without any doubts with my answers
@dawoodali46053 жыл бұрын
Thank you soo much! Your a life saver!!!
@ayeshafaiz35826 жыл бұрын
Thanks Allah that khan academy axist on youtube..so much helpful.such a great explanation..
@ninagetmoney93216 жыл бұрын
thank GOD for you!! I was stressing in class. you just made it super simple for me!
@mbkfox13 жыл бұрын
you are an amazing individual, thanks for making it simple
@shumailashuaib57015 жыл бұрын
Thank you so much . Concept is now crystal clear 😇🙇
@agbormcchelsea92092 жыл бұрын
Very useful And I have a ÇA tomorrow big help🙏🏽
@welovemusic85423 жыл бұрын
You guys are amazing thankyou! Can't wait to see you guys get more popular...
@alinamanha15616 жыл бұрын
Simply amazing! Really really proud of you , Khan (as a Bangladeshi)!
@LisaSmith-jo5hw9 жыл бұрын
You're a rock star! I totally get it. Thank you.
@mohamadosman87966 жыл бұрын
how does the squire root of 400 become 2 ?
@SubscriptOutOfBounds11 жыл бұрын
In this example he's working on population so he uses N (5 -> entire population). However, we use N - 1 when dealing with a sample of the universe.
@sindizwane74822 жыл бұрын
I love your explanation really but I am bit confused with SD (standard deviation) but I will go back toy book and listen to this again. Thanks 🙏🏿
@angelicaatherfold2912 жыл бұрын
Ahhhh I understand it!!! Appreciate you big time!!
@brokenballer896 жыл бұрын
OMG this clip..... how can you explain these things in such a easy way. Thank you!!!