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

แชร์
ฝัง
  • เผยแพร่เมื่อ 31 ม.ค. 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..

ความคิดเห็น • 851

  • @mglastra5151
    @mglastra5151 6 ปีที่แล้ว +127

    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! :)

  • @vladpuha
    @vladpuha 8 ปีที่แล้ว +314

    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
      @healer740 7 ปีที่แล้ว +1

      Nova Cane ditto

    • @bennasserchafi304
      @bennasserchafi304 6 ปีที่แล้ว +6

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

    • @nureyna629
      @nureyna629 5 ปีที่แล้ว +6

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

    • @londekamngomezulu4071
      @londekamngomezulu4071 5 ปีที่แล้ว +1

      Same here...

    • @shubhangiraskar2500
      @shubhangiraskar2500 5 ปีที่แล้ว +1

      Yo bro.....same situation was there

  • @chriscurley1478
    @chriscurley1478 9 ปีที่แล้ว +37

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

  • @babatundefajemisin8221
    @babatundefajemisin8221 3 ปีที่แล้ว +13

    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

  • @bimalhumanbimalthapa7535
    @bimalhumanbimalthapa7535 6 ปีที่แล้ว +144

    You are VERY GOOD TEACHER.

  • @45nakash
    @45nakash 6 ปีที่แล้ว +16

    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

  • @subprabhart771
    @subprabhart771 6 ปีที่แล้ว +4

    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.

  • @quantstyle6448
    @quantstyle6448 7 ปีที่แล้ว +12

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

  • @Divyashaa577
    @Divyashaa577 4 ปีที่แล้ว +11

    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.

  • @miketant3509
    @miketant3509 4 ปีที่แล้ว +2

    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.

  • @coleabrahams9331
    @coleabrahams9331 3 ปีที่แล้ว +3

    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

  • @mwansak9027
    @mwansak9027 4 ปีที่แล้ว

    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.

  • @kimberleeanderson5398
    @kimberleeanderson5398 3 ปีที่แล้ว +1

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

  • @bigfunsoftware368
    @bigfunsoftware368 9 ปีที่แล้ว +6

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

  • @MrArturoDominguez
    @MrArturoDominguez 5 ปีที่แล้ว +1

    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
      @kimberleeanderson5398 3 ปีที่แล้ว

      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.

  • @quetzalamaru
    @quetzalamaru 9 ปีที่แล้ว +6

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

  • @battmarn
    @battmarn 11 ปีที่แล้ว +2

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

  • @animor7731
    @animor7731 4 ปีที่แล้ว +1

    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.

  • @Pedro-vx1ns
    @Pedro-vx1ns 3 ปีที่แล้ว

    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!

  • @mahyar7126
    @mahyar7126 4 ปีที่แล้ว +3

    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.

  • @MDAVID2903
    @MDAVID2903 3 ปีที่แล้ว +1

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

  • @talonvanslack6814
    @talonvanslack6814 4 ปีที่แล้ว +2

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

  • @wisdomtoknowthedifference
    @wisdomtoknowthedifference 4 ปีที่แล้ว

    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!

  • @knferrer7966
    @knferrer7966 4 ปีที่แล้ว

    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

  • @nicolebrown8613
    @nicolebrown8613 2 ปีที่แล้ว

    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.

  • @angelburgos2921
    @angelburgos2921 9 ปีที่แล้ว +16

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

    • @ivanburgos4529
      @ivanburgos4529 9 ปีที่แล้ว

      nice

    • @backexercise1624
      @backexercise1624 5 ปีที่แล้ว

      Thank you for this very simple and easy to follow explanation

  • @thembelanimiya8964
    @thembelanimiya8964 4 ปีที่แล้ว +1

    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!

  • @altromantaro
    @altromantaro 4 ปีที่แล้ว +1

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

  • @loraforster7163
    @loraforster7163 6 ปีที่แล้ว

    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

  • @solomondames
    @solomondames 4 ปีที่แล้ว +3

    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.

  • @xiaojinghong7444
    @xiaojinghong7444 6 ปีที่แล้ว

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

  • @leeostadi7900
    @leeostadi7900 7 ปีที่แล้ว +1

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

  • @frankmaghanga1924
    @frankmaghanga1924 2 ปีที่แล้ว +1

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

  • @fangzhang7434
    @fangzhang7434 5 ปีที่แล้ว

    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!

  • @mothman84
    @mothman84 4 ปีที่แล้ว +2

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

  • @user-uy3cy5uw5j
    @user-uy3cy5uw5j 9 หลายเดือนก่อน +1

    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

  • @harshadasinha6249
    @harshadasinha6249 ปีที่แล้ว

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

  • @gokyo66
    @gokyo66 10 ปีที่แล้ว

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

  • @brianwahome2897
    @brianwahome2897 7 ปีที่แล้ว +2

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

  • @danishshaikh4979
    @danishshaikh4979 4 ปีที่แล้ว

    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.

  • @vylam3997
    @vylam3997 10 ปีที่แล้ว

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

  • @ganeshkashyap8573
    @ganeshkashyap8573 2 ปีที่แล้ว +3

    I spent learning stats for 2 years and you explained the concept in just 18 minutes. You should create a Udemy Course.

  • @henokgebeyehu1507
    @henokgebeyehu1507 4 ปีที่แล้ว

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

  • @TeMrN1
    @TeMrN1 7 ปีที่แล้ว +1

    Clear and precise! Thank You!!!

  • @brendachioino30
    @brendachioino30 5 ปีที่แล้ว

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

  • @karanbajaj852
    @karanbajaj852 4 ปีที่แล้ว

    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 .....

  • @farzanaanam3631
    @farzanaanam3631 7 ปีที่แล้ว

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

  • @bruceleeroy9532
    @bruceleeroy9532 ปีที่แล้ว

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

  • @richarda.gontusan5678
    @richarda.gontusan5678 3 ปีที่แล้ว

    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!

  • @kenjiikemura
    @kenjiikemura 7 ปีที่แล้ว

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

  • @algentry1
    @algentry1 ปีที่แล้ว

    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 TH-cam. 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".

  • @ashleighpriest803
    @ashleighpriest803 10 ปีที่แล้ว +2

    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! :)

  • @crackpotgaming4859
    @crackpotgaming4859 8 ปีที่แล้ว +40

    That camera man is fucking amazing.

    • @josephsonners2743
      @josephsonners2743 7 ปีที่แล้ว +8

      somebody get that guy a promotion, he should be doing movie/tv shoots

    • @AMalas
      @AMalas 7 ปีที่แล้ว +5

      CrackPot Gaming I think this is shot in ultra high resolution, Zoomed and cropped in post production...

    • @grant3244
      @grant3244 7 ปีที่แล้ว +4

      i'm pretty sure it's just edited in, not actual camera movement, the general shot is much larger and the video is shown zoomed in digitally. heh.

    • @Keyakina
      @Keyakina 7 ปีที่แล้ว +2

      first thing i thought about haha!

    • @afazahmed2891
      @afazahmed2891 6 ปีที่แล้ว

      Its the zoom option you get in different video editing software for high resolution video.

  • @LooneyMia
    @LooneyMia 9 ปีที่แล้ว

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

  • @piyushgurung9690
    @piyushgurung9690 11 หลายเดือนก่อน

    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...

  • @gilessteve
    @gilessteve 10 ปีที่แล้ว

    A very clear and well-paced explanation. Thankyou.

  • @gloriayaprawu1211
    @gloriayaprawu1211 5 ปีที่แล้ว

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

  • @shortyonthebus
    @shortyonthebus 8 ปีที่แล้ว +2

    I like you. You make this easier to understand. Quick questions-is there a list I can find on which order to watch the stats videos?

  • @stayfocused6374
    @stayfocused6374 ปีที่แล้ว

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

  • @ElditaTarani
    @ElditaTarani 9 ปีที่แล้ว

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

  • @francisokech
    @francisokech 11 ปีที่แล้ว

    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!

  • @rafaelalvarez7004
    @rafaelalvarez7004 2 ปีที่แล้ว

    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

  • @ruiliu830
    @ruiliu830 5 ปีที่แล้ว +2

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

  • @monstertoy4620
    @monstertoy4620 5 ปีที่แล้ว +1

    hello from the year 2019. Love this, came here for clarification in my studies - doing Intro to Biostats this is great. Thank you

  • @euniceochieng6478
    @euniceochieng6478 9 ปีที่แล้ว +4

    Hi.Thanks alot for your quest to make life with stats bearable for people like me.I am forever grateful to you. i wish i listened to the videos at the beginning of the semester would have done an 'A'. How can i get the complete stats video by the same person with topics like Correlation ,regression,probability ,hypothesis.mean.medial,mode,measures of dispersion ie interquartile range, relative measures of dispersion ,coefficient of correlation,standardization ,sampling proportion etc Keep it up Sir. You are a gifted teacher.

  • @user-uy3cy5uw5j
    @user-uy3cy5uw5j 9 หลายเดือนก่อน

    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

  • @rachanawadhwani5944
    @rachanawadhwani5944 7 ปีที่แล้ว

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

  • @cezbabe
    @cezbabe 5 ปีที่แล้ว

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

  • @asathananthan
    @asathananthan ปีที่แล้ว +1

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

  • @darkmankind
    @darkmankind 3 ปีที่แล้ว

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

  • @HelneitCo
    @HelneitCo 10 ปีที่แล้ว

    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

  • @jeanq6726
    @jeanq6726 3 ปีที่แล้ว

    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!!!

  • @TheVarshucop
    @TheVarshucop 2 ปีที่แล้ว +1

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

  • @Nott_Fifi
    @Nott_Fifi 4 ปีที่แล้ว

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

  • @utsavparashar5104
    @utsavparashar5104 4 ปีที่แล้ว

    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.

  • @wakeupandsmellthecoffee1626
    @wakeupandsmellthecoffee1626 5 ปีที่แล้ว

    This helped out with an upper-level biopsych course covering the stats of genetic heritability. Thank you!

  • @hy2536
    @hy2536 5 ปีที่แล้ว

    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.

  • @teemulindqvist5034
    @teemulindqvist5034 5 ปีที่แล้ว

    Amazing guy! Teachers should learn from this expert.

  • @krishanmohansharma8306
    @krishanmohansharma8306 5 ปีที่แล้ว +1

    I simply like your way of explanation.. Great job. Salute you.

  • @hudamultimedia1980
    @hudamultimedia1980 4 ปีที่แล้ว

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

  • @hungppham5189
    @hungppham5189 10 ปีที่แล้ว

    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

  • @MultiBallchinian
    @MultiBallchinian 4 ปีที่แล้ว

    This 17 minute lecture taught me more than several weeks of statistics at my university

  • @ontariobeaver9376
    @ontariobeaver9376 4 ปีที่แล้ว +2

    The best teacher ever!

  • @enisenis2662
    @enisenis2662 5 ปีที่แล้ว +1

    Thank you very much I was looking for an explanation why there is a square in the variance formula

  • @e.g.4721
    @e.g.4721 3 ปีที่แล้ว

    Simple and very clear explanation. Thank you !!!

  • @Copley417
    @Copley417 ปีที่แล้ว

    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!

  • @eminememinemful
    @eminememinemful 8 ปีที่แล้ว

    Amazing explanation. Thank you so much!

  • @mathbytv4858
    @mathbytv4858 6 ปีที่แล้ว

    Your lucid explanation on variance helped me out a lot. Thank you very much!

  • @MDMAx
    @MDMAx 2 ปีที่แล้ว

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

  • @elainekhonggoh9335
    @elainekhonggoh9335 หลายเดือนก่อน

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

  • @jules.634
    @jules.634 5 ปีที่แล้ว

    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!!

  • @nickstopler1151
    @nickstopler1151 3 ปีที่แล้ว

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

  • @muffmuffin1756
    @muffmuffin1756 3 ปีที่แล้ว

    Please accept my gratitude 🙏 I've been browsing the internet for 20mins. just to understand what variance is. Now i finally get it because of you 🤧 Thank you so much Teacher 😇

  • @jonathanbarrow3975
    @jonathanbarrow3975 4 ปีที่แล้ว

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

  • @milindmore1977
    @milindmore1977 9 ปีที่แล้ว +1

    Thank you ! very nice explained !

  • @trochetiaboutic5278
    @trochetiaboutic5278 4 ปีที่แล้ว

    this teacher is perfect thank you for this clear info

  • @sandrasmj1
    @sandrasmj1 5 ปีที่แล้ว

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

  • @KK-mo8tc
    @KK-mo8tc 4 ปีที่แล้ว

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

    • @MathAndScience
      @MathAndScience  4 ปีที่แล้ว

      So happy you liked it!
      Jason, MathAndScience.com

  • @shrutipathak2552
    @shrutipathak2552 6 ปีที่แล้ว

    Thank you for explanation, so simple to get the logic , would like to see more videos from you

  • @emsdy6741
    @emsdy6741 3 ปีที่แล้ว

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