Bridging the Gap Between Average Deviation and Standard Deviation

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  • เผยแพร่เมื่อ 30 ก.ย. 2024

ความคิดเห็น • 42

  • @zizimo3793
    @zizimo3793 4 ปีที่แล้ว +5

    That was one of the most beautiful explanations ive ever heard. I was searching for the answer of why the formula of standard deviation was that way, and you did explain it with mastery. Thank you so much

    • @COCCmath
      @COCCmath  4 ปีที่แล้ว +2

      Oh, WOW! Thank you so much, friend! it bugged me for years that it didn't seem to have a sensible answer, so I just kept digging and thinking. And here we are. :) Be well!

  • @lapu1602
    @lapu1602 10 หลายเดือนก่อน +2

    WHOA! you are wonderful

    • @COCCmath
      @COCCmath  10 หลายเดือนก่อน +1

      Awwwwwww....thank you. Hope it helped. :)

  • @alexterkov6050
    @alexterkov6050 4 ปีที่แล้ว +2

    Thanks you a lot!!

    • @COCCmath
      @COCCmath  4 ปีที่แล้ว

      You're so welcome!!!!

  • @marksergio1774
    @marksergio1774 3 ปีที่แล้ว +2

    Love the enthusiasm! I'm amazed this video doesn't have more views, you did a great job breaking it down. This has bothered me for a long time and I only ever received nonanswers from my professors.
    Although now I'm curious about the reference "now, I hate to pull a ?Froma? on you". I understand the meaning I was just wondering where it came from. Is it referring to a mathematician?

    • @COCCmath
      @COCCmath  3 ปีที่แล้ว +1

      Hey, Mark! Glad it was helpful. :) The "Fermat" line was about the mathematician Pierre de Fermat; he had a claim for centuries that the equation a^n + b^n = c^n has no integer solutions in a, b, nor c for n > 2. He also claimed to have a proof of this claim that was "too long to contain in the margin" of the book in which he was writing. :D
      It was finally proven in the 1990s by Dr. Andrew Wiles.
      Always fun to drop the "Fermat" line in when something doesn't fit on a board. :D

  • @17boots
    @17boots 4 ปีที่แล้ว +2

    Best explanation of why we use SD over MAD on the internet. Thank you!!!

    • @COCCmath
      @COCCmath  4 ปีที่แล้ว

      Thank you so much! So, so glad it helped. :)

  • @dannifeng8339
    @dannifeng8339 2 ปีที่แล้ว +1

    I am working at quality department and need to deal with lots of datas.For example, CP & CPK, MSA etc and they are base on sigma. This video is very helpful to understand of sigma. Thank you.

    • @COCCmath
      @COCCmath  2 ปีที่แล้ว

      Hey Danni! Thank you for your kind words! And glad it helped! :)

  • @lusio2515
    @lusio2515 3 ปีที่แล้ว +1

    Unreal simplicity. Thanks a lot !

    • @COCCmath
      @COCCmath  3 ปีที่แล้ว +1

      Hey, thanks! :) :) :)

  • @diegobacud299
    @diegobacud299 3 ปีที่แล้ว +1

    Thank you for your great explanation!

    • @COCCmath
      @COCCmath  3 ปีที่แล้ว +1

      You're welcome! :)

  • @Aaron-iq6oh
    @Aaron-iq6oh 3 ปีที่แล้ว +2

    I came here for a simple answer to this exact question you just answered. You did it so well, I subscribed to the channel, and I'm not even a numbers guy, lol. Great job, and thanks!

    • @COCCmath
      @COCCmath  3 ปีที่แล้ว

      Thanks, Aaron! Glad it helped! The math of average deviation if so very *intuitive; I just felt it needed to be connected to the measure that actually gets used. Be well!

  • @harymega8446
    @harymega8446 6 ปีที่แล้ว +2

    This is excatly what I need. Thanks for the explanation... That's very clear.

    • @COCCmath
      @COCCmath  6 ปีที่แล้ว

      You're so welcome! Glad it helped!

  • @EEShyama
    @EEShyama ปีที่แล้ว +1

    1:20 I do not understand why if we do not take the modulus, it will average to zero. In this sample set, it averages out to zero, but how is it possible for all data sets?
    Please help me out here

    • @COCCmath
      @COCCmath  ปีที่แล้ว

      Hey there! Is this what you mean - around 6:30? Try this: th-cam.com/video/B3Gcn_e1Ako/w-d-xo.html

    • @EEShyama
      @EEShyama ปีที่แล้ว +1

      @@COCCmath Oops! I commented the wrong timestamp.
      I can't believe you replied even after all these years and uploaded the explanation in such a short time. I saw the explanation you uploaded and it makes perfect sense to me now. Thank you very much!!
      On a side note, I just discovered your channel and I was just wondering whether you are a college mathematics professor.
      Anyway, thanks for this amazing video as well as for solving my doubt.

    • @COCCmath
      @COCCmath  ปีที่แล้ว

      @@EEShyama Dear friend! Not at all a problem! It was fun! :)
      And you're so welcome! I do teach at a community college (Central Oregon Community College in Bend). Feel free to poke around the channel - it's a little chaotic; I don't do the best job of keeping things "top down" organized (kinda a combination of ADD and having this channel for 15 years now). :)
      Be well, and thanks again for the great question!!! :)

  • @databloke2755
    @databloke2755 2 ปีที่แล้ว +1

    Loved this video! Thank you for explaining it with such a great enthusiasm. These subtle things are making large differences for me.

    • @COCCmath
      @COCCmath  2 ปีที่แล้ว

      Thank you so much for your kind words! So very glad it helped! :)

  • @pyancey0
    @pyancey0 7 ปีที่แล้ว +2

    Wow, i'm terrible at math and I understood this. Great video and thanks for sharing!

    • @COCCmath
      @COCCmath  7 ปีที่แล้ว +1

      Thank you! It's a work in progress, but this is a good start.

  • @filipevaz92
    @filipevaz92 7 ปีที่แล้ว +2

    Great video!

    • @COCCmath
      @COCCmath  7 ปีที่แล้ว +1

      Thank you, Mr. Page! It needs a little tweaking, but I appreciate the feedback!

  • @JozzledWolfram
    @JozzledWolfram 2 ปีที่แล้ว +1

    Thank you so much for clearing that up for me! This video was so helpful. It is clear you have a passion for math.

    • @COCCmath
      @COCCmath  2 ปีที่แล้ว

      Thanks, Zoe Glad it helped!

  • @zehraarshadmulla9976
    @zehraarshadmulla9976 3 ปีที่แล้ว +1

    which website are you mentioning?

    • @COCCmath
      @COCCmath  3 ปีที่แล้ว +1

      I'm guessing it's my class website (these videos are usually made for my students): coccweb.com/srule/MTH243/

    • @zehraarshadmulla9976
      @zehraarshadmulla9976 3 ปีที่แล้ว +1

      @@COCCmath seriously you explain it so fine. Thank you so much.

    • @COCCmath
      @COCCmath  3 ปีที่แล้ว +1

      @@zehraarshadmulla9976 Thanks, friend! Glad it made sense. :)

  • @alonsorobots
    @alonsorobots 6 ปีที่แล้ว +2

    That was amazing. Thank you for the video =)

    • @COCCmath
      @COCCmath  6 ปีที่แล้ว

      You're so welcome! Glad you liked it!

    • @alonsorobots
      @alonsorobots 6 ปีที่แล้ว +1

      I hope you do a series on the math behind Neural Networks on day =)

    • @COCCmath
      @COCCmath  6 ปีที่แล้ว

      My retirement plan! :)

  • @justinmarino7965
    @justinmarino7965 2 ปีที่แล้ว

    the energy is so lit. thanks!!!!!!

    • @COCCmath
      @COCCmath  2 ปีที่แล้ว +1

      Heck yeah! Glad you liked it! Appreciate it. :)