What is Variance in Statistics? Learn the Variance Formula and Calculating Statistical Variance!

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In this lesson, you'll learn about the concept of variance in statistics. We'll discuss how variance is derived and what the equations of variance means. We will also cover how variance is very closely related to standard deviation in statistics..

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Oh my god you are so clear! Your 17 min video is more useful than the last month of lectures for data analytics at the university... Keep up the good work! :)

[@chemistryvigynana]

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[@jayerichardson5506]

SO BLOOMIN TRUE!

[@vladpuha]

I wish i had a teacher for statistics like this guy. (i had a stupid one hated stats) but had to work with them and learned them myself.. you rock! excellent presentation

[@healer740]

Nova Cane ditto

[@bennasserchafi304]

i had the most stupid teacher you can even imagine in statistics.

[@nureyna629]

The same to me. I wish he could be my teacher. It's my first time to understand variance in my entire life

[@londekamngomezulu4071]

Same here...

[@shubhangiraskar2500]

Yo bro.....same situation was there

[@chriscurley1478]

Looked at several tutorials; this by far is the most direct approach. Thank you.

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Follow @sangni statistics

[@babatundefajemisin8221]

I love this tutor, this is the way to teach students, he makes it very basic and teaches it in an applied way. I wished I had known him earlier

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You are VERY GOOD TEACHER.

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[@dangerouslady007]

raashid khan hi

[@chemistryvigynana]

Hello

[@dangerouslady007]

Are you good at stats?

[@quantstyle6448]

I'm familiar with this concept, but this by far the clearest and best explanation I've encountered. Respect!

[@miketant3509]

There should be an award for making a 17 minute math video feel like it was over before it started. This guy understands how to teach.

[@MathAndScience]

Thanks so much!

[@Divyashaa577]

I can't express how much I love the way you teach. it's so interesting and easy to understand. thank you so much for your initiative. I am a student of mass communication, and for my PhD program I need to learn statistics, and it seemed so pathetic to me. your lessons made me feel like statistics is as interesting as journalism itself. thanks you is a small world. but I mean it.

[@45nakash]

Thank you! Thank you! Thank you! 5 statistics books, about ten videos, and a college course, and none explains what a variance actually is in such simple description

[@chemistryvigynana]

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[@coleabrahams9331]

Absolutely incredible. You are a true legend, sir. Honestly, one of the best teachers out there and extremely patient in arriving at the answer with a logical and intuitive approach. Thanks so much

[@kimberleeanderson5398]

Finally! I now thoroughly understand variance, thank you! I wish all my professors would speak this clearly when teaching about complicated subjects.

[@bigfunsoftware368]

This is explained so well, especially for a beginner, thank you!

[@mwansak9027]

I've had different statistics courses throughout my degree that I've kind of just been winging. For the first time, I actually understand this concept! You're an amazing teacher.

[@subprabhart771]

Sometimes I just get frustrated on our education system for just running behind marks and not making the students understand any of the stuff .Hope one day my country will also have great teachers like you who makes the student know clearly what they are learning. Thanks a lot sir,huge love and respect from India.

[@quetzalamaru]

You have to watch 2 or 3 times, to appreciate. Very detailed, thumbs up.

[@xiaojinghong7444]

by far the best ever, online AND in reality. I am purchasing the rest of the courses right away. its priceless.

[@Nott_Fifi]

I watched so many statistics videos on KZbin, I have to say, he is the best!!!

[@wisdomtoknowthedifference]

I wish most professors are THIS elaborate! I needed classes where they explain why we use the formula, what it gets for us, and basically the significance of it all. Few of the professors I had in Stats were going straight for the formula, and they didn't really explain the whats, whys and hows. I wish he was my Stat teacher, maybe I have fallen in love with Stats from then on!

[@MDAVID2903]

What a great explanation! Thank you a lot, Professor. The world needs more instructors like you!

[@altromantaro]

Mister, you are a teacher everyone is wishing for. Thank you.

[@Pedro-vx1ns]

To "simply" do your work as it should be done, is already helping other people. And you do that beautifully, humbly and very effectively! God bless you for that! You are a truly master and professor! Thank you so very much!

[@talonvanslack6814]

Thank you for breaking this equation down and making it so easy to understand.

[@battmarn]

I've been trying to understand what variance was actually for all year and you've explained it in 17 minutes. Thank you

[@nicolebrown8613]

I thought I was innately bad at Math until I came across educators like yourself who really care about learning as opposed to getting through a curriculum. Thank you for this.

[@fangzhang7434]

I really find this video very helpful because professor try to explain the concept from perspective of a know-nothing student instead of giving hard terms. Respect a lot!

[@frankmaghanga1924]

The simplicity of your explanation makes this topic very understandable in one go!

[@loraforster7163]

My statistic course is completely online. Finding you tube is my lifeline. Its a complete statistics course in 5 weeks. This video is super helpful

[@bruceleeroy9532]

This is BY FAR the best explanation I've heard yet. Thank you.

[@gloriayaprawu1211]

This man made me love statistic this trim in school. I couldn't have gotten a better explanation than this. thank you sir

[@mahyar7126]

amazing description in everything, actually I am shocked by how this teacher consider himself as a simple student to not make explanations even a little bit complicated..thank you so much, teacher.

[@danishshaikh4979]

Almost all other stats videos never really explained the concepts but this guy teaches us in a way that it really gets sinked in deep in our minds. dam well done Sir.

[@MathAndScience]

Great thank you!

[@user-uy3cy5uw5j]

You bring it out clearly that teaching is a talent , you have got to be my best teacher for statistics from today and onwards, thank you so very much 14:08

[@vylam3997]

You make it look so easy. My stat teacher spent an hour explaining this concept yet I couldn't understand. Thank you so much.

[@thembelanimiya8964]

Your explanation is so incredible, l tried other videos to understand stat terms was so difficult but with yours now is very clear. Many thanks!

[@mothman84]

This is immensely helpful. Thank you so very much for sharing!

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This channel has been so helpful to me, at the age of 36 and jumping into the local University, i feel like i need as much help as possible and your the most helpful person online. thank you so much.

[@kimberleeanderson5398]

Agreed, at 50 I jumped back into the University environment, and I wish all instructors had this guys skills at breaking down a problem and explaining it thoroughly. I often feel as if I am teaching myself, and have done so for the last 2 years. However, in the process I have learned even more.

[@knferrer7966]

Sir, this was a very clear and pure way to understand variance. I am very grateful to realize this. I am studying econometrics and i could never really fundamentally wrap my head around what the variance truly meant. It's easy to calculate, but for me to intuitively understand what the variance is at its core and the importance of this for statistics... is because of you. thank you

[@stayfocused6374]

This is the best explanation I have seen. Finally a teacher who understands that students need to feel the concept in their guts!

[@angelburgos2921]

bless you kind man!!! it has helped me tremendously. y cant my stats teacher teach like this!

[@ivanburgos4529]

nice

[@backexercise1624]

Thank you for this very simple and easy to follow explanation

[@harshadasinha6249]

I wish I would have found this channel before, such clear explanation that the concept would get ingrained in your brain, hats off sir!

[@rachanawadhwani5944]

I have learnt Statics in College and Other courses but now I have have actually got a clear understanding for it. the best explanation.

[@user-uy3cy5uw5j]

You bring it out clearly that teaching is a talent , you have got to be my best teacher for statistics from today and onwards, thank you so very much

[@leeostadi7900]

10/10 Extremely good teaching, captivating and simple explanation.

[@LooneyMia]

you have no idea how much you've helped me! Always grateful to you !

[@ShubhamKapoor]

Thaaaank youuu for explaining in so simple terms, it created so much clarity in my head.

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This guy is very good teacher, he explains things in such detail it just sinks in..... Kudos, by-the-way i am a Financial Analyst and Investment Management student at the University of Toronto. Mr Math and Science guy thank you for your online material you doing a great job educating people of the planet .....

[@francisokech]

Dear Jason, thank you so much for this fantastic series on Statistics. I will purchase every single volume you put out on statistics. Everyone out there should recognize that Statistics and Data is the new oil of the 21st Century!

[@solomondames]

Wow, you explained this very well. I read the book, however, I wasn't able to understand it. I now understand it after watching this video, thank you.

[@gokyo66]

Man you're great! I finally understood a concept that it was foggy for me, now it is cristal clear. Thank you!

[@TheVarshucop]

wondeful lecture, wish i had a lecturer like him before.

[@animor7731]

I'm a psychology student and you are my hero! cause our teacher doesn't explain to us what the words like variance and SD we use are he says the spss will do all calculations. Well, I want to understand the logic behind at least.

[@farzanaanam3631]

Omg, this tutor is EXCELLENT! SO well explained. Thanks !

[@rutendoshayanewako8802]

thanks,this proves to be an eye opener,so simplified and understandable.

[@hungppham5189]

so much easier than what my professor taught us. i was completely clueless of how to figure out the difference between variance and the mean. thank you

[@pleabargain]

Thank you for posting this! Very useful!

[@nickstopler1151]

This is great! Understood immediately.. much better than just knowing the formula. Thanks!

[@yuliapetrunina8756]

WOW this is the best explanation ever!!!!!!!!!!!!!!! Thanks a lot for such detailed explanation

[@brendachioino30]

Excellent video! The concept was extensively and clearly taught. Thank you so much!

[@algentry1]

Amazing clarity. I learned this math in the early 1980s, studying for my Land Surveyor's license. I was sitting here trying to remember the math, and it occurred to me to look on KZbin. Now I remember the unknown variables left for me in the field, by incompetent forbears, data points that were suspect just by virtue of who established them. I ended up co writing the license exam for a couple of years. I still have Hewlett-Packard RPN nightmares. So many people know how, but they don't know why. Thanks for being a great teacher. Maybe now I can penetrate my "great cloud of unknowing".

[@Olga-jm5xf]

I am grateful !!! You have a perfect way of getting through to students !

[@michelleb.1714]

Awesome job of explaining what the variance is!!! I'm taking a correspondence course & therefore can't talk face to face with the teacher. You answered all of my questions!! Thanks!! :-)

[@brianwahome2897]

You, sir, are a brilliant teacher,thank you.

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You teach understanding and the significance of what we are learning. Its so helpful! Thank you!

[@richarda.gontusan5678]

Your explanations are crystal clear. Your explanations are easy to follow. I wish I had you for my statistics lecturer at the university. Thank you Sir!

[@hy2536]

Million thanks from who study German language but take statistics lecture too. I speak Korean and your explanation is so clear that even I can understand very well. Thanks again for the lessons.

[@MDMAx]

nice explanation. clears out a few obscure angles of the concept. thank you!

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You are the Statistics Teacher I want to have right now.

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Greatest teacher i'd seen ever

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The best teacher ever!

[@ruiliu830]

Perfect explanation!!! Love U ! This video is super helpful !

[@jonathanbarrow3975]

EXCELLENT LESSON, FINALLY UNDERSTAND VARIANCE. WE NEED TEACHERS LIKE THIS IN K-12!

[@Copley417]

Outstanding! O LOVE the way you explained the logic and rationale, and not just push for memorization of formulas. I am in my FIFTIES re-learning statistics for my Masters and forgot most of the fundamentals though I use statistics very day. I hated math in high school because I preferred to understand and the teaching style was flash cards for math! Zoinks. Any way, i appreciate you. 1000 thanks!

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You are awesome man! Thanks to you I understood what I was struggling to understand a while in class. Thank you so much.

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you are the only person who make me understand this topic. you born to be a lecturer. thank you.

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This was very informative; I am in a statistics class this semester, and I actually understood what he was explaining.

[@ruthtappinph.d.5003]

You are an EXCELLENT teacher!

[@sarajarrar6232]

Thank you sir! i understood it from you more than school! good luck

[@kenjiikemura]

That was extremely helpful. You explained it from the fundamental concept and now I know the definition of variance. Thank you.

[@learnlearn8230]

God bless you sir, you are an magnificent teacher. You do not really make us learn rather you make us understand the concepts from the ground level.Please accept my utmost regards.

[@e.g.4721]

Simple and very clear explanation. Thank you !!!

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I found this "treasure" 7 yrs later! =) Thank you so much!

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Clear and precise! Thank You!!!

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I do not know what I would do without this guy.

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We need more teachers with the same skills that you have!

[@MrMatrajan]

Awesome, You made variance to understand so simple. thank you very much.

[@gilessteve]

A very clear and well-paced explanation. Thankyou.

[@asathananthan]

I love the way you teach. You just cleared the doubt which is rolling in my mind for ages in a few munites 😍👍

[@ashleighpriest803]

Thank you so much!! I've been racking my brain trying to figure this out for my college statistics course and you made it much easier to understand. Thank you for taking the time to help! :)

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Hi

[@chemistryvigynana]

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[@ahmedqaysib]

I'm reading and seeing many pages on google and youtube. I just wanna say that's the best explain for variance. Thank you

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[@utsavparashar5104]

This teacher is a genius. He explained it so clearly that even in sleep I can explain what variance is. He directly persist his teachings in first brain.

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You're very good at explaining statistics in a simple way! Please continue! :D

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Supreme quality of teaching. I wish all professor explain things as crystal clear as he does. Two thumbs up Sir!

[@MathAndScience]

So happy you liked it! Jason, MathAndScience.com

[@henokgebeyehu1507]

Thank you, I have always known how to calculate variance, however, your video helped me gain an intuitive grasp of variance.

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Just want to let you know, even after a decade your video is helping impart the knowledge and help people like me understand things better...

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Thanks God I found this channel. His way of teaching is superb.

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thank you so much! what a life saver you are

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The only explanation I understood! Thanks a lot!! :D

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Excellent video! I was not into statistics when I was in college, but somehow the way you explained this made a lot of sense. Thank you

[@Thorsted1981]

This is really great! Thanks a lot!

[@enlightenment7877]

wow! never seen anyone teach stats this good. Thankyou so much. God bless!

[@MathAndScience]

I really appreciate it! Get our Free App and View all Lessons! www.MathTutorApp.com