Standard Deviation Formula, Statistics, Variance, Sample and Population Mean

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  • Опубліковано 30 січ 2025

КОМЕНТАРІ • 433

  • @TheOrganicChemistryTutor
    @TheOrganicChemistryTutor  Рік тому +14

    Statistics - Free Formula Sheet: bit.ly/47zjTVT
    Statistics - Video Lessons: www.video-tutor.net/statistic.html

  • @elizabethkain75
    @elizabethkain75 3 роки тому +421

    You explained in 6 minutes what my college professor failed to teach in 2 weeks. Thank you so much!!!! I have a test on this next week and I was so lost. I spent three hours on a homework assignment because I didn't understand their wording and now I get it perfectly!!! Thank you!!

    • @manahelh.6104
      @manahelh.6104 Рік тому +10

      uni and college sets students up for failure tbh

    • @lukekrawiec3522
      @lukekrawiec3522 Рік тому

      im sorry, you do this in college???????

    • @lk6977
      @lk6977 Рік тому

      @@lukekrawiec3522 yes?

    • @thegreatpapyrus3644
      @thegreatpapyrus3644 Рік тому

      why? is there something wrong?
      @@lukekrawiec3522

    • @blossomluvsu9
      @blossomluvsu9 Рік тому +5

      COLLEGE?? bro im struggling with this at 12 years old 😭

  • @wc4201
    @wc4201 2 роки тому +48

    i've been out of school for over a decade but recently returned to pursue an MBA. I literally learned more in 10 minutes than I did in my class last week. Thank you.

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    @carlettaknoxseymour4406 2 роки тому +84

    This man is phenomenal! He’s methodical and patient in his teaching. I learned so much from his video.

  • @soha1301
    @soha1301 3 роки тому +99

    Im crying.. 😭 you explained me something so perfectly my professor couldn't .. thank you soo much 🌹💯👏

    • @soha1301
      @soha1301 3 роки тому +1

      @@maxwong4918 if i could pay attention to this video, his way of teaching and understand the concept then why do you think I didn't pay attention to my professor 😂😂 anyways think as u like im glad i cleared my exams coz this guy I'll always be thankful 😊

    • @mriduldubey2920
      @mriduldubey2920 2 роки тому +1

      same scene as mine 😂😂

    • @Svelasc2
      @Svelasc2 7 місяців тому +1

      SAME!

  • @wrjazziel
    @wrjazziel 4 роки тому +689

    I come to this channel for everything I don't understand from my University professors

    • @ayeshakoser5831
      @ayeshakoser5831 2 роки тому +12

      Same here😂😂

    • @mmhh3553
      @mmhh3553 2 роки тому +4

      Me too 😂😂😂😂

    • @alessandrozito7047
      @alessandrozito7047 2 роки тому +18

      University? I’m learning this in grade 10 yeah buddy your probably in the American school system that’s why

    • @chelsiiiwhoo4030
      @chelsiiiwhoo4030 2 роки тому +10

      @@alessandrozito7047 statistics isn’t mandatory in the US but you CAN take it and higher in our high schools.

    • @alvinbett111
      @alvinbett111 2 роки тому +1

      Same

  • @xvingar6318
    @xvingar6318 Рік тому +7

    i cant count on both of my hands how many times i watch your videos for help. In 9th grade from alegebra, chemistry, and alegrbra 2 to statistics first year in college, you helped me so much you dont understand

  • @war_correspondent
    @war_correspondent Рік тому +30

    You just helped me summarized my 6 months class in 10 mins. This morning I got final, thank you so much!

  • @BMSKARATE
    @BMSKARATE 3 роки тому +64

    For programmers (Python): # sd_list = [3,5,7]
    top_row = [(x - mean(sd_list))**2 for x in sd_list]
    final_equasion = math.sqrt(sum(top_row) / 3)
    Amazing video, again and again! Thank you so much TOCT!

    • @zakattack786
      @zakattack786 2 роки тому +1

      hi

    • @CrimeWithEli
      @CrimeWithEli Рік тому +3

      here's a cool python program I made for this:
      import numpy
      from math import sqrt
      heights = [175, 180, 190]
      new_heights = []
      x = len(heights)
      z = numpy.mean(heights)
      for i in heights:
      y = i - z
      y = y**2
      new_heights.append(y)
      for i in range(x):
      e = new_heights[i] / x
      new_heights[i] = e
      std_dev = sqrt(sum(new_heights))
      print(std_dev)

    • @ChroniclesOfLebo
      @ChroniclesOfLebo 5 місяців тому

      @@CrimeWithEli 💀

    • @ya-si127
      @ya-si127 2 місяці тому

      You saved a life

  • @รัมปะภัม
    @รัมปะภัม Рік тому +2

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  • @aussielife4604
    @aussielife4604 5 років тому +48

    Thank you, you’re actually better than a university lecturer. Crazy!

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    @phillipsithole7275 5 років тому +19

    Moderate voice, standard explanations...everything perfect

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    @sizuchii 4 роки тому +4

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    @nozimasobirova4300 5 років тому +11

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    @UberPretzel101996 6 років тому +15

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    @dignanavida5948 5 років тому +15

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    @lauramartinez7009 6 років тому +35

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    @flaxschoolacc1193 8 місяців тому

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  • @kristylisak.3310
    @kristylisak.3310 Рік тому

    Dang this is such a simple explaination of SD and Variance! I wish he went over practical examples like how this relates to reading statistical research papers! But his channel alone is the main reason I'm doing well in school!

  • @NotReallyJas
    @NotReallyJas 10 місяців тому +5

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    @broncooccelien2946 11 місяців тому

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    @lisanguyen2397 5 років тому +4

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  • @DinithiJay
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  • @claranceliberi
    @claranceliberi 5 місяців тому

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    @_av8 Рік тому

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    @peterpace3379 5 років тому +20

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    @ian8879 6 років тому +11

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    @corinnemcconnaughy3996 3 роки тому +10

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    @hudsonfrank1121 3 місяці тому +1

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    @mmhh3553 2 роки тому +3

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    @muhammadyousufkhuram4936 Рік тому

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    @DUMITRUANDREEA-GEORGETA 2 роки тому

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    @thecoffeebadger5807 Рік тому +1

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  • @AliHadi_
    @AliHadi_ 2 роки тому

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    @gileamburce1315 Рік тому +1

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  • @venessoko1932
    @venessoko1932 5 років тому

    OMG...this video was so helpful...the stress all long gone...thankyou very much..

  • @PallyGonzalez
    @PallyGonzalez 2 роки тому

    seriously thank you so much, all my professor did was the way to find standard deviation is just do this equation here .

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    @danielcahigas5016 4 місяці тому

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    @mikeugarte5351 5 років тому +1

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    @ryanpaulsmeyer5522 2 роки тому

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    @ZeitunaAbdallah-fy9ee 9 місяців тому

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    @sspah6870 2 роки тому +4

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  • @LindtLain
    @LindtLain 2 роки тому

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    @Chi_Nesha 3 роки тому

    First of all, I love his voice but he helps me understand.

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    @isabelcontreras8472 4 роки тому +5

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    @jmoneyswag7815 2 роки тому

    you explained this wayyyy better than my teacher. im finally gonna do good on my retest. thank you so much sir

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    @love_jjk 2 роки тому

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  • @rimangharazeddine2573
    @rimangharazeddine2573 2 роки тому

    Thank you. You made this operation worked out by using simple definitions for each term ,which by the way, I have not seen that happening in the guide books. So, thanks.

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    @Abby-hr8im 5 років тому +11

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    @Clove4524 3 роки тому

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    @Our.nostalgia657 3 роки тому +1

    Thank you professor, currently busy witha an assignment.

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    @wandipebenny5597 3 роки тому

    Thank so much my teacher didn't explain this topic and give me a assignment so when I watch this i understand n complete my assignment 🙏🏿💔🙏🏿

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    @gabriellamansfield7579 3 роки тому

    I love this man, but the ads come right when I’m making a break through and then I lose focus

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    @ashelymwinga1375 2 роки тому

    Well and simply explain, My best online tutor.

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    @michellestolzenburg3062 7 років тому +2

    Thank you. You helped me get more statistics homework in on time.

  • @davidson6116
    @davidson6116 4 роки тому

    this guy made standard deviation so simple but my teacher in school gave me a long winded complex explanation I did not understand

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    @rudyperez2542 5 років тому +4

    Just wow dude! great job!. simple to understand. thank you very much

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    @YT.R_Oxido 9 місяців тому

    dude, i thank you so much sir, once again u saved me in my exam, i only have 2 problems wrong and its all because of arrangement i kinda rushed answering my exam, but still got highest, thanks

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    @matsen2c5-1 Рік тому

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  • @vvinterwitch
    @vvinterwitch 2 роки тому

    Thank you really helpful, my professor forgot to upload the lecture video for the hw due in a few hours

  • @dailydose5709
    @dailydose5709 3 роки тому

    He is way more better than my professor .

  • @givenpuje6106
    @givenpuje6106 2 роки тому

    thank you very much you have no idea how much you are helping me

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    @eneshagarajayeva Рік тому

    Your voice is so calming I love it I wonder what you look like in life)

  • @veranikakvitko9632
    @veranikakvitko9632 7 років тому +2

    this is very helpful, everything is explained very simply. subbed

  • @hannahjuliagonzales6950
    @hannahjuliagonzales6950 4 роки тому +2

    Thanks for the video, I literally thought regular standard deviation was the same with Population and sample deviation

  • @clonique12
    @clonique12 3 роки тому +19

    Hello, when you are solving standard deviation, I don't see the part in the formula where we use (n-1). It's sqrt8/3 at the 6:00 mark in the video?

    • @ahuma6952
      @ahuma6952 2 роки тому +9

      I believe it's Because We are using the Population instead of a sample

  • @dienekelle5548
    @dienekelle5548 4 місяці тому

    You have save me so many times!!! Thank you!

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    @rwothomioroy4173 2 роки тому

    Man! you are G.O.A.T👏

  • @lilly6805
    @lilly6805 2 роки тому

    Wonderful video thanks for such a helpful video. And thanks to a teacher who helps their students in.

  • @gmj2025
    @gmj2025 Рік тому

    Thank you so much for your help! It’s easier when you teach it.

  • @danplaysgames2666
    @danplaysgames2666 Рік тому

    I like the way you simplify it. Thank you.

  • @jennifersawyer6657
    @jennifersawyer6657 2 роки тому

    Thank you soo much for breaking it down for me. My book, nor my professor provided this specific information.

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    @shiromidassanayaka1500 Рік тому

    You are a miracle worker💯

  • @HullBoy-ld6nf
    @HullBoy-ld6nf 3 роки тому

    Thanks! I got a quiz on this tomorrow!

  • @mputaostin3077
    @mputaostin3077 2 роки тому +1

    Thanx for the demonstration message be blessed

  • @hathu5060
    @hathu5060 6 років тому +5

    hopefully there are gonne be more videos on statistic tutorial

  • @nidaali1637
    @nidaali1637 5 років тому

    Long live this channel and prosper . easiest help possible

  • @mathhelpmadeeasy
    @mathhelpmadeeasy 2 роки тому

    Fantastic video for Finding Standard Deviation in Statistics! Thank you!

  • @Tixlez108
    @Tixlez108 11 місяців тому

    Dude honestly thank you it took me 6 mins to learn it and perfect it rather then 45 mins 😂

  • @John-ng8fm
    @John-ng8fm 2 роки тому

    Best presentation ever 😍

  • @tymothylim6550
    @tymothylim6550 3 роки тому +2

    Thank you very much for this video :) It was clear and easy to follow.