Normal Distributions, Standard Deviations, Modality, Skewness and Kurtosis: Understanding concepts

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  • Опубликовано: 12 дек 2024

Комментарии • 267

  • @shadexdemarr
    @shadexdemarr 10 лет назад +27

    As an instructor myself I wanted to commend you on your ability to explain a difficult concept without talking over the listener's head. So many videos get so caught up in the math and details they often forget how important it is sometimes to simply explain what's going on in terms anyone can understand.

  • @Tramadoon
    @Tramadoon 3 года назад +7

    Thanks for the video. Lepto means narrow (or thin) in Greek. Platy means wide. Just thought I'd throw that out there in case it's useful to anyone.. thanks again for the video!

  • @angelineallaire7073
    @angelineallaire7073 6 лет назад +7

    As a novice to Statistics your ability to educate by captivating the learner is a tremendous skill set not found in many instructional videos! THANK YOU, and well done!

  • @Samira.Khademrad
    @Samira.Khademrad 18 дней назад

    I’m a master student and I finally understand this part of statistics with your fantastic teaching method. I wish I had found you sooner.

  • @mendicant1981
    @mendicant1981 2 года назад +9

    you basically summed my two hour lecture into a five minutes video whilst also making it very simple to understand. thank you!

  • @keishawhite349
    @keishawhite349 9 лет назад +13

    These are very clear and simple descriptions for very mud-like processes! Thanks so much. I am going to share with my Ed.D. Ed Leadership cohort. You rock!

  • @albertroches7216
    @albertroches7216 9 лет назад +1

    Thanks very much from Belize. Short and to the point, but very effective. Never seen so much info presented so clearly in such a short time. Thanks again and great work.

    • @NurseKillam
      @NurseKillam  9 лет назад

      Thanks :) ... It definitely takes some effort to accomplish that.

  • @biafgaspar
    @biafgaspar 4 года назад +3

    It is important to highlight that the Kurtosis they mention in the video is the so-called "excess kurtosis" which has the value of 0 in the case of a Normal Distribution. Kurtosis, on the other hand, is 3.

  • @sweetsixtyn4402
    @sweetsixtyn4402 11 месяцев назад

    This is the best explanation I've found on RUclips. Thank you!

  • @6clonedcows
    @6clonedcows 10 лет назад +3

    3:24 I'm pretty sure the reason why we have more positive skews than negative skews is because the majority of the numbers we work with are non-negative, meaning there's a lower bound, i.e. 0, but no upper bound. For example, if you're measuring the amount of time it takes for someone to take a test without time limitations, it's likely that there are going to be outliers, people who take a really long time.

    • @halimselim6743
      @halimselim6743 3 года назад

      interesting view, cleared my mind thanks

  • @keishacarr3063
    @keishacarr3063 6 лет назад +2

    Definitely one of the best simplified mini lessons for statistics!

  • @NurseKillam
    @NurseKillam  10 лет назад +26

    I'm happy you liked it

    • @bmpatel1281
      @bmpatel1281 10 лет назад +1

      Thanks

    • @NurseKillam
      @NurseKillam  7 лет назад +1

      +Josh Uddin yes. I'm a nurse and teacher.

    • @zahidhasan1175
      @zahidhasan1175 6 лет назад +1

      thank you ma'am it was very helpful for me :-)

  • @catirerubio
    @catirerubio 5 лет назад

    Statistics is still beyond confusing but this video helps. No longer dazed and confused, just confused. Thanks for making it.

  • @rmcginnis8157
    @rmcginnis8157 4 года назад +1

    Thank you!! Just started my doctoral program and needed some further assistance!!

  • @awekemoges7317
    @awekemoges7317 3 года назад +1

    professionally simplified, as a step towards heading to the complex understanding. Great!

  • @praisethesun9434
    @praisethesun9434 4 года назад +1

    Thank you. I have been searching for a good video on distribution curves and this is the best one. It answered all my questions. Much appreciated

  • @JayGhiyaGoogle
    @JayGhiyaGoogle 6 лет назад +1

    This one is quite helpful and understands concepts from a visual perspective. Kudos to @Nursekillam

  • @siannix07
    @siannix07 9 лет назад +4

    . very nice .. i was absent during our class discussion regarding this topic . and it's our exam tomorrow .. and i think i can pass. thanks for this ..

    • @frostice961
      @frostice961 5 лет назад

      I know this is too late but uh. Did you pass?

  • @HabibBector
    @HabibBector 6 лет назад

    Wish me good look for my Exam at 9.30AM and its already 3AM.
    Your content is really helping.
    Have not attended a single class for the subject. Wish me luck guys.

    • @NurseKillam
      @NurseKillam  6 лет назад +1

      Good luck! In my opinion attendance does not equal learning .... hopefully you were able to learn in other ways.

  • @pamvera
    @pamvera 10 лет назад +4

    This video is the first on the subject to really help me understand. Thank you for the clear explanation :)

  • @shanehixson1313
    @shanehixson1313 4 года назад

    Just what I needed. good clear explanations. good audio, good visuals. Keep up the good work.

  • @RiaaXaine
    @RiaaXaine 6 месяцев назад

    THANK YOU!! FINALLY SOMEONE EXPLAINED WHAT THE KURTIC'S LOOK LIKE

  • @nensikanackica
    @nensikanackica 7 лет назад +5

    I love how u explained it so simply! thanks

    • @NurseKillam
      @NurseKillam  7 лет назад +2

      +Nena Miodrag you are welcome. That was my goal :)

  • @samuelmcgill4110
    @samuelmcgill4110 6 лет назад

    Very simplistic, thank you, anyone could follow specially for a beginner like me.

  • @dadangsudrajat68
    @dadangsudrajat68 4 года назад

    It's really helping our students coz it's a very simple and clear explanation, thank you so much.

  • @kunaladhikary4937
    @kunaladhikary4937 8 лет назад +8

    this video is very helpful for the beginner. thank you so much ma'm.

  • @guptaachin
    @guptaachin 6 лет назад

    Precise, to the point and complete.

  • @Tracey74R
    @Tracey74R 6 лет назад

    Thank you so very very much! You helped me to identify with kurtosis because the reading was too much in my texts.

  • @mdshahshahi8634
    @mdshahshahi8634 6 лет назад

    This is really great. So much information in such short video with such clarity.

  • @elsanto8505
    @elsanto8505 9 лет назад +10

    Thank you for your time. It's a valuable information that it helps me with my class.

    • @NurseKillam
      @NurseKillam  9 лет назад +1

      +Charles Spurgeon So good to hear

  • @chloe-mariek2488
    @chloe-mariek2488 8 лет назад +2

    Thanks for this basic, intuitive explanation :)

  • @counselorchandru
    @counselorchandru 8 лет назад +7

    Wow can I adopt you as the stats teacher character in my life? You explained that articulately! :D

  • @neerjanglama
    @neerjanglama 5 лет назад +2

    Thank you. Your effort is highly appreciated

  • @sulthansk6444
    @sulthansk6444 4 года назад

    Crystal clear explanation...

  • @turkmura81
    @turkmura81 6 лет назад

    awesomely clear explanations

  • @tiffanyl2899
    @tiffanyl2899 6 лет назад

    this is still helpful today. statistics midterm in 4 hours.

  • @SharafatAliPK
    @SharafatAliPK 2 года назад

    Comprehensively explained

  • @TesserHedron
    @TesserHedron 7 лет назад

    Your videos and explanations are very good. Thanks for putting this up.

  • @prajwol_poudel
    @prajwol_poudel 2 года назад

    3:06 skewness=(mean-mode*)/S.D or skewness=3*(mean-median)/S.D

  • @guuusha3699
    @guuusha3699 8 лет назад

    Thank you so much.you explain it in very clear manner.

    • @NurseKillam
      @NurseKillam  8 лет назад +1

      Awesome to hear! Thanks for watching and taking the time to let me know.

  • @richardgordon
    @richardgordon 4 года назад

    Really excellent explanation! Many thanks 🙏

  • @samanthapikus3178
    @samanthapikus3178 7 лет назад

    Thanks.. Great video... You talk a little fast though, but you are clear and have a great voice.

  • @subekshadahal1424
    @subekshadahal1424 6 лет назад +1

    Really simple and perfect expalanation.

  • @heetgorakhiya2242
    @heetgorakhiya2242 7 лет назад

    Its Great! Helped me with the basic, but you should make detailed videos. I'd love it!

  • @subekshadahal1424
    @subekshadahal1424 6 лет назад

    Really great video tutorial. It is useful for beginner and expert as well.

  • @youngadultsuis
    @youngadultsuis 8 лет назад

    Thanks very much NurseKillam. I was struggling to understand the concept of kurtosis. Yours is the best video I've seen!!!! :)

  • @jurgenpeci6810
    @jurgenpeci6810 9 лет назад

    Thx so much for this explanation. Very clear and helpful.

    • @NurseKillam
      @NurseKillam  9 лет назад

      Awesome to hear. You are welcome :)

  • @chewechishala3622
    @chewechishala3622 7 лет назад

    Precise and straight to the point! very heplful..thanks!!

  • @arupnayak555
    @arupnayak555 4 года назад

    Thank you. Your videos are helpful.

  • @austinb3560
    @austinb3560 2 года назад

    Thanks for simplifying this

  • @Kebedia1
    @Kebedia1 9 лет назад

    Very helpful. It is short and clear

  • @tnasucks1444
    @tnasucks1444 10 лет назад +1

    Thanks soooo much! Great Clarity, in your speech and in your presentation! Excellent!

  • @brendalovelady
    @brendalovelady 10 лет назад

    Great explanation and easy to understand thanks for the visual.

  • @youhenok
    @youhenok 10 лет назад

    NurseKillam you had a nice video, a superb one......1000likes goes to you...we need more about statistics as you did it

  • @Ayuk1
    @Ayuk1 4 года назад

    Great explanations. Thank you

  • @redwhitegreen
    @redwhitegreen 8 лет назад

    Good video, very helpful.
    One correction, for central moment, Kurtosis of norm. dist. K=3
    So mesokurtic k=3
    Leptokurtic has K>3
    Playkurtic had K

    • @NurseKillam
      @NurseKillam  8 лет назад

      I'll go back and check my sources. Thanks.

  • @EyoAsuquo-gl2gh
    @EyoAsuquo-gl2gh Год назад

    So good at Statistics and you studied nursing. Wow.

  • @kristania411
    @kristania411 7 лет назад

    holy moly, helps a lot! taking statistics online!!

  • @angrypepecancer5205
    @angrypepecancer5205 8 лет назад

    Many thanks. :) Thought it would be better if you show us how to calculated the skewness and kurtosis. Its my topic to discuss.
    i have a report tomorrow about this. It help me allot. Thanks again.

    • @NurseKillam
      @NurseKillam  8 лет назад

      +Player Gabriel our students don't need to calculate it, which is why I didn't include it. Sorry!

  • @iuliaflorescu9070
    @iuliaflorescu9070 8 лет назад

    Very useful presentation! Thank you!

  • @kidssharon
    @kidssharon 8 лет назад

    Very helpful!
    will be looking for other videos from you on Statistics~

    • @NurseKillam
      @NurseKillam  8 лет назад

      +Sharon T Thank you. I hope to make more soon. Is there anything you need in particular?

  • @breannedewolf677
    @breannedewolf677 10 лет назад

    I loved the video, although it did feel a little rushed. Maybe slowing down just a little bit? The information was so amazing and well worded though! Thanks so much!

    • @NurseKillam
      @NurseKillam  10 лет назад

      Thanks for the feedback. Slowing down is my biggest challenge. It's hard to find a balance between boring and hyper-speed. Im naturally a fast talker. I'm happy you liked the content though :)

  • @BLKWDWENT
    @BLKWDWENT 5 лет назад

    Nursekillam I legit love you!! your video is awesome!!

  • @fawazkazeem9132
    @fawazkazeem9132 3 года назад

    Thanks for the simplified Explanation 🙏
    Pls, how do we solve different problems concerning Skewness and Kurtosis?

  • @mharry87
    @mharry87 10 лет назад

    Thank you NurseKillam for the wonderful video.

  • @DaRealTowStarr
    @DaRealTowStarr 7 лет назад

    Nice and simply put. Would anyone explain (In simple terms) what effect taking the natural logarithm of a scale that has a high kurtosis value.

  • @happyangelmarquesrs
    @happyangelmarquesrs 9 лет назад

    Thanks from Brazil! Obrigada! :)

  • @donnalastica3108
    @donnalastica3108 6 лет назад

    Very good video. Thanks for posting it.

  • @nknnithinabc
    @nknnithinabc 10 лет назад

    Thanks,ur explanation is simply superb

  • @HafizahHoshni
    @HafizahHoshni 6 лет назад +1

    Simply excellent. Very grateful for clear, concise and well presented video. Thank you for the great channel. 27/8/2018 😊

  • @patwheeldn9555
    @patwheeldn9555 7 лет назад

    Fabulous explanation ... thank you!

    • @NurseKillam
      @NurseKillam  7 лет назад

      +Pat Wheeldn thank you for the compliment :)

  • @TheSevenofMine
    @TheSevenofMine 9 лет назад

    The video was very good, but I would have liked to get an explanation of excess kurtosis and its difference towards kurtosis as well.

    • @NurseKillam
      @NurseKillam  9 лет назад

      That would be a good topic for another video. This one was aimed at undergraduate students who don't really need that much detail. I'll add that to my ideas list and let you know if I come across any other videos that are well done.

    • @TheSevenofMine
      @TheSevenofMine 9 лет назад

      I'm an undergraduate student studying Forensics and I'm preparing for an exam in Measuring Techniques and Statistics (and yes, I think we're going into much more detail than would be necessary^^). I've understood the relevant difference now, but it would be great if you added it in another video :) thank you

  • @Yahmalichiah
    @Yahmalichiah 7 лет назад

    Thanks for this. I kept coming across these terms and just could not understand the 'fat tail' analogy!

  • @Pufferfish28
    @Pufferfish28 6 лет назад

    Great information! Perfectly articulated, but personally I would like it if you could slow it down a tiny bit. :)

  • @hemalatha5442
    @hemalatha5442 8 лет назад

    very well explained....

  • @shrutishirke1533
    @shrutishirke1533 5 лет назад +1

    Thakyou.
    Can you discuss, different methods of sample size estimation. In your next video

  • @dr.mahmoodazadi6032
    @dr.mahmoodazadi6032 7 лет назад

    It was really helpful, easy to learn , Thanks a lot

  • @FluencyAccentCoach
    @FluencyAccentCoach 4 года назад

    Explained well. Thank you.

  • @hosseinrafiei6465
    @hosseinrafiei6465 5 лет назад

    Awesome presentation. So happy I watched the video. Thanks so much :)

  • @sintakristanti6108
    @sintakristanti6108 6 лет назад

    Very informative with all those figures, thank you so much!

  • @shubhamkmr900
    @shubhamkmr900 6 лет назад

    It helped me a lot. Thankyou .

  • @mzcontaantiga
    @mzcontaantiga 7 лет назад

    Hi, great video! So when the distribution is said to have fat tails, that means it is Leptokurtic?

  • @areejk6402
    @areejk6402 6 лет назад

    you made my life easier thank you!

  • @gaelmboussaanga8073
    @gaelmboussaanga8073 8 лет назад

    Well explained and thank you so much.

  • @SunnyKumar-ew3gw
    @SunnyKumar-ew3gw 9 лет назад

    very nice..solved my concerns. Thanks

  • @prathameshpradipdatar2003
    @prathameshpradipdatar2003 4 года назад

    Helping me in 2020!

  • @JakeTorres0206
    @JakeTorres0206 8 лет назад

    Hi, your video is good..Can I use this one for my multi-media studies?

  • @shakilanjum6867
    @shakilanjum6867 7 лет назад

    very nicely done

  • @TheSar818
    @TheSar818 6 лет назад

    Nice Video ! Keep up the good work !

  • @smilebake111
    @smilebake111 8 лет назад

    thanks for such crisp information. i have one query.. if the values of mean=97.66, mode=98 and median is 97 then what will be interpretation about skewness? kindly reply

    • @NurseKillam
      @NurseKillam  8 лет назад

      You could calculate it but basically I'd say it is almost perfect (no skew). Nothing is perfect in real life.

  • @bronwynmastrangelo2564
    @bronwynmastrangelo2564 10 лет назад

    Excellent !! Very helpful !!

  • @bgbzero
    @bgbzero 7 лет назад

    What's the significance of leptokurtosis? Is it not good that most of the test scores are near the mean?

  • @khurramalimubasher1238
    @khurramalimubasher1238 8 лет назад

    Excellent, just a little more guidance how do we use all this in finance ? specially portfolio. Regards

    • @NurseKillam
      @NurseKillam  8 лет назад

      +Khurram Ali Mubasher sorry. I'm not a finance expert... I'd imagine some of it is applicable but I'm not sure how.

    • @khurramalimubasher1238
      @khurramalimubasher1238 8 лет назад

      no worries thank you for knowledge :) tc

  • @andreimartinez3346
    @andreimartinez3346 4 года назад

    thank you so much teacher

  • @zhandossalpynov
    @zhandossalpynov 6 лет назад

    So good👍well done!

  • @jacobmitchell85
    @jacobmitchell85 7 лет назад

    what about a non symmetrical bimodal graph, how would you decide if it is positive or negatively skewed?

  • @LAGHRISSIAdnane
    @LAGHRISSIAdnane 3 года назад

    جزاك الله خيرا، Thank you

  • @appagi
    @appagi 8 лет назад

    Very helpful. Thank you very much

  • @noelenepereira7379
    @noelenepereira7379 3 года назад

    Great video, Thanks

  • @gergerger53
    @gergerger53 7 лет назад

    Nice video. I am just familiarising myself with the concepts so it was nice and conceptually clear, but also with a chance to learn some fancy terminology on the way :)