Joint Probability Distribution # 3 | Covariance and Correlation Coefficient

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  • Опубліковано 19 жов 2024

КОМЕНТАРІ • 54

  • @bakugan248
    @bakugan248 4 роки тому +4

    Thank you, you saved my exam/life. My professor didn't bother to teach it yet his exam had me looking for the Cov and correlation.

  • @madskills1485
    @madskills1485 6 років тому +2

    Perfect well done. Simple, short and right to the point. Thanks WBM.

  • @GiteshJoggesser
    @GiteshJoggesser 6 місяців тому

    You are an absolute savior. Thank you so much.

  • @niclasbergman8418
    @niclasbergman8418 3 роки тому +4

    Thank you so much, been struggling with this for what seems like an eternity now. Best vid on this out there

  • @alexeybelov3465
    @alexeybelov3465 3 роки тому +1

    You saved my life, thanks a lot!

  • @DoudouAutomation
    @DoudouAutomation 5 років тому +10

    Hi i think you made a little mistake at the end, instead of covariance, correlation, thank you

  • @SulagnaDasgupta
    @SulagnaDasgupta 8 років тому +8

    The probabilities don't add up to 1. They add up to just a little more than 1 - 25/24. I think we can just change all the denominators to 25 and everything will be alright.

  • @rajeevkhuttan9555
    @rajeevkhuttan9555 9 років тому +33

    Ending should be correlation not covariance.

    • @WelshBeastMaths
      @WelshBeastMaths  9 років тому +13

      Rajeev Khuttan Silly error on my part, apologies.
      I will annotate the video to correct it!
      Thanks

    • @jasonwiberg1285
      @jasonwiberg1285 Місяць тому

      @@WelshBeastMaths 9 years later not annotated haha

  • @andyboadu3891
    @andyboadu3891 9 років тому +2

    This is so cool. You made my day. Thanks a lot. I was lost as to how to get E|XY| but now I know.

    • @arunkenta
      @arunkenta 4 роки тому

      Same. It's weird I couldn't find it anywhere else!

  • @aimlesscait
    @aimlesscait Рік тому

    Bro where are you we needed more of this topic

  • @themysterygirl3279
    @themysterygirl3279 Рік тому +2

    at 8:13 you had stated the fomula to be cov(x,y)=corr(x,y)/sd, as opposed to the one at 5:33, where the values are switched. which one is correct?

    • @thabangmokoto6490
      @thabangmokoto6490 5 місяців тому

      And I wa so confident for my assessment, now I’m here at the comment section wondering if I’m the only one who notices the switch up…

  • @ivanrodriguezc
    @ivanrodriguezc 9 місяців тому

    Thank you, this was helpful

  • @abenash2881
    @abenash2881 Рік тому

    mate, you are so goated

  • @bradleyhansen6444
    @bradleyhansen6444 6 років тому

    Excellent video. Studying for the P1 exam for actuary and it helped a lot!

  • @reecegriffith4864
    @reecegriffith4864 5 років тому +2

    thank you so much, was looking to solve E(XY) for so long

  • @nahlanahla8715
    @nahlanahla8715 5 місяців тому

    In 2024 i'm watching this video for my finals THANK you sm sir ❤

  • @madisonnguyen953
    @madisonnguyen953 Рік тому

    thank you so much ^_^ this was very helpful!!

  • @sna241
    @sna241 3 роки тому

    Useful, thanks.

  • @meloney55
    @meloney55 3 роки тому

    Thank you for this!

  • @ratandeep6694
    @ratandeep6694 2 роки тому +3

    how do you calculate E(X) and E(Y)?

    • @4dpolice817
      @4dpolice817 7 місяців тому

      ua-cam.com/video/eTSIsBA-ERk/v-deo.html
      a little late ig lol

  • @real-roland
    @real-roland 7 років тому

    You are awesome!!! Thanks for the video.

  • @josevalencia9233
    @josevalencia9233 4 роки тому

    I really enjoyed your mini-series videos. Very clever and very practical explainations. Thanks

  • @bellaaaluna5100
    @bellaaaluna5100 7 років тому +1

    thank you so much, im actually looking for this .may god bless you. I subscribe :)

  • @CrypticBTR
    @CrypticBTR 7 років тому

    thank you so very much. Very helpful video.

  • @watasn5081
    @watasn5081 4 роки тому +1

    For more solved question on the Joint Probability Density function click on the link below:
    drive.google.com/file/d/1sEylHsFaX6aHTWjiCKaBqwaLcnfG0A7X/view?usp=sharing

  • @yonhe2009
    @yonhe2009 8 років тому

    That helps a lot! Thanks!!!

  • @CT-mc3sy
    @CT-mc3sy 6 років тому

    THANK YOU SO MUCH!!

  • @RiazKhan-ut4xt
    @RiazKhan-ut4xt 6 місяців тому

    The sum of all probabilities in your values is 25/24, that should be 24/24=1

  • @nickklein4312
    @nickklein4312 5 років тому +7

    Thanks, I'd like the video but it has 420 likes and I'm not gonna mess that up

    • @CWA1
      @CWA1 5 років тому

      Please next time show how you derived the marginal expectations

  • @jiaqiliu1814
    @jiaqiliu1814 8 років тому

    Thank you sooooo much!!!!!

  • @pyanamin1865
    @pyanamin1865 6 років тому +1

    wasn't the E(x)=24/24? how did you get 29/24?

  • @seungyunha4286
    @seungyunha4286 8 років тому

    Thank you!:)

  • @hype_henry_it
    @hype_henry_it 7 років тому

    thanks for the video

  • @udaykumar-xz3jk
    @udaykumar-xz3jk 9 років тому

    Thanks!!

  • @tjfirhfjejUTH24
    @tjfirhfjejUTH24 8 років тому

    very helpful ty

  • @asitranjanmaharathi3279
    @asitranjanmaharathi3279 6 років тому

    Thanks a lot bro.. u saved me 🙏

  • @abdullahkardas8887
    @abdullahkardas8887 6 років тому

    Thanks brother for covariance formula

  • @rajaghani8972
    @rajaghani8972 7 років тому

    much effective tutorial

  • @hezelmawedze2164
    @hezelmawedze2164 4 роки тому +1

    yu did the vice versa there....but its nyce

  • @Mike-cd4qg
    @Mike-cd4qg 6 років тому

    thanks

  • @أحمدالبريكي-غ8ص
    @أحمدالبريكي-غ8ص 7 років тому

    Thanks a looot =)

  • @iampks
    @iampks 7 років тому

    lovely :)

  • @jalalnaji3710
    @jalalnaji3710 7 років тому

    thank you so much i was looking for this and i have an exam tomorrow thanks sir

  • @ABHISHEK8YADAV
    @ABHISHEK8YADAV 5 років тому +1

    thanks sir dont make silly mistakes

  • @lamborghini0610
    @lamborghini0610 8 років тому

    Thank you so much!!!!!!!!!!

  • @present1forever
    @present1forever 9 років тому

    thanks