What is Variance in Statistics? Learn the Variance Formula and Calculating Statistical Variance!
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- Опубликовано: 31 янв 2013
- Get the full course at: www.MathTutorDVD.com
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..
![Standard Deviation & Mean Absolute Deviation Explained - 6-8-19]](http://i.ytimg.com/vi/HBDAjHfLVH4/mqdefault.jpg)
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! :)
Follow @ sangni statistics
SO BLOOMIN TRUE!
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
Nova Cane ditto
i had the most stupid teacher you can even imagine in statistics.
The same to me. I wish he could be my teacher. It's my first time to understand variance in my entire life
Same here...
Yo bro.....same situation was there
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
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.
Looked at several tutorials; this by far is the most direct approach. Thank you.
Follow @sangni statistics
You are VERY GOOD TEACHER.
Please follow @sangni statistics
@sangnistatistics
raashid khan hi
Hello
Are you good at stats?
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
Follow @sangni statistics
I'm familiar with this concept, but this by far the clearest and best explanation I've encountered. Respect!
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.
Thanks so much!
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.
I've been trying to understand what variance was actually for all year and you've explained it in 17 minutes. Thank you
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.
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!
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 .....
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
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.
This is explained so well, especially for a beginner, thank you!
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
Finally! I now thoroughly understand variance, thank you! I wish all my professors would speak this clearly when teaching about complicated subjects.
You have to watch 2 or 3 times, to appreciate.
Very detailed, thumbs up.
What a great explanation! Thank you a lot, Professor. The world needs more instructors like you!
Mister, you are a teacher everyone is wishing for. Thank you.
Thank you for breaking this equation down and making it so easy to understand.
I spent learning stats for 2 years and you explained the concept in just 18 minutes. You should create a Udemy Course.
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
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.
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.
by far the best ever, online AND in reality. I am purchasing the rest of the courses right away. its priceless.
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.
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...
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.
I watched so many statistics videos on RUclips, I have to say, he is the best!!!
Oh my god. This video has helped so much. I dislike my current Stats prof... he explains nothing as well as this guy. Thank you!! I wasted hours in stats class only to learn it here in a fraction of the time!!
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!
The simplicity of your explanation makes this topic very understandable in one go!
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!
I wish I would have found this channel before, such clear explanation that the concept would get ingrained in your brain, hats off sir!
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
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.
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!! :-)
Man you're great! I finally understood a concept that it was foggy for me, now it is cristal clear. Thank you!
10/10
Extremely good teaching, captivating and simple explanation.
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!
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.
This is immensely helpful. Thank you so very much for sharing!
wondeful lecture, wish i had a lecturer like him before.
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 RUclips. 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".
I have learnt Statics in College and Other courses but now I have have actually got a clear understanding for it. the best explanation.
This is BY FAR the best explanation I've heard yet. Thank you.
Excellent video! The concept was extensively and clearly taught. Thank you so much!
you are the only person who make me understand this topic. you born to be a lecturer. thank you.
You are awesome man! Thanks to you I understood what I was struggling to understand a while in class. Thank you so much.
I am paying loads of money to university each year, and yet I got my stats enlightenment on your video. Thanks
you have no idea how much you've helped me! Always grateful to you !
This man made me love statistic this trim in school. I couldn't have gotten a better explanation than this. thank you sir
You make it look so easy. My stat teacher spent an hour explaining this concept yet I couldn't understand. Thank you so much.
This is an excellent video!!! None of the texts I have read have explained variance so well. One book did, in simple terms, explain that the reason that the "n - 1" is used as a denominator in the sample equation is that "the sample mean always underestimates the true variance in the population." There is actually a mathematically and statistically advanced reason for subtracting a simple one from the denominator, But "in the simplest terms remember that doing so helps raise the value of the outcome of the equation closer to the true variance of the population." (e.g. 20/5 = 4 however, 2/(5-1) =5)
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
Passed my statistics exam because of you, thank you very much.
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!
That was extremely helpful. You explained it from the fundamental concept and now I know the definition of variance. Thank you.
Thank you, I have always known how to calculate variance, however, your video helped me gain an intuitive grasp of variance.
EXCELLENT LESSON, FINALLY UNDERSTAND VARIANCE. WE NEED TEACHERS LIKE THIS IN K-12!
Omg, this tutor is EXCELLENT! SO well explained. Thanks !
You, sir, are a brilliant teacher,thank you.
WOW this is the best explanation ever!!!!!!!!!!!!!!! Thanks a lot for such detailed explanation
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!
This is the best explanation I have seen. Finally a teacher who understands that students need to feel the concept in their guts!
I thumbed up for this video because unlike in school, this guy has actually taught the reasoning behind variance.
In school, we were literally just told to memorize the formula.
Kudos
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
This is great! Understood immediately.. much better than just knowing the formula. Thanks!
You're very good at explaining statistics in a simple way! Please continue! :D
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!
finally, someone who can really describe and teach statistics.
nice explanation. clears out a few obscure angles of the concept. thank you!
You teach understanding and the significance of what we are learning. Its so helpful! Thank you!
Lifesaver for my statistics topic, more than happy to purchase your full version at your website. The lecturer at my Uni just assumes us know what these concepts mean, and rush right into SPSS, but really, we need to understand why. BIG THANK YOU!!!
Perfect explanation!!! Love U ! This video is super helpful !
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
instead of just memorizing the formula it's so much better to understand the meaning and make of the formula. this video is very helpful! thank you very much!
A very clear and well-paced explanation. Thankyou.
The explanation couldn't have been better than this. Thank you.
Very clearly explained, very detailed. Two thumbs up, can't do better than this. Thanks a lot !!
Thanks God I found this channel. His way of teaching is superb.
bless you kind man!!! it has helped me tremendously. y cant my stats teacher teach like this!
nice
Thank you for this very simple and easy to follow explanation
Simple and very clear explanation. Thank you !!!
This was very informative; I am in a statistics class this semester, and I actually understood what he was explaining.
Clear and precise! Thank You!!!
I love the way you teach. You just cleared the doubt which is rolling in my mind for ages in a few munites 😍👍
Now i undestand
Teaching is the tallent hence any body can be a teacher but not a good teacher
I apreciate this is the good teacher
You have great teaching skills man. Keep up the good work!
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.
Great thank you!
Six years later, and yet he is still a god-tier teacher :0)!!!
I am grateful !!! You have a perfect way of getting through to students !
You have made this look so simple for me to understand thanks so much have been having issues with biometry
Your lucid explanation on variance helped me out a lot. Thank you very much!
Thaaaank youuu for explaining in so simple terms, it created so much clarity in my head.
Excellent video, very clear , precise an instructed at an ideal tempo
I simply like your way of explanation.. Great job. Salute you.
Thank you for explanation, so simple to get the logic , would like to see more videos from you
thanks,this proves to be an eye opener,so simplified and understandable.