Stats: What is a "Standard Normal Distribution"?

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  • Опубліковано 4 лют 2025

КОМЕНТАРІ • 184

  • @wh33l6r
    @wh33l6r 7 років тому +10

    Wow! You should do this for a living! Teach stats that is. You have adopted the perfect professorial tactics: take nothing for granted. Keep the explanations simple. Don't use jargon if you're not going to explain it and even then, keep it to a bare minimum. I've seen others posts of yours and they're all equally excellent! Thank you!!

  • @Shitpost_MaGee
    @Shitpost_MaGee 9 років тому +229

    BRUH WHY COULDN'T MY PROFESSOR EXPLAIN IT LIKE THIS?! Thank you.

  • @CarlsonsRaiders
    @CarlsonsRaiders 12 років тому +8

    You explained an hour and 45 minutes of statics in about 4 and a half minutes. I love you.

  • @azfarulnaim1486
    @azfarulnaim1486 8 років тому +48

    This is the best explanation ever! and your voice is so soothing !

  • @altonromero9331
    @altonromero9331 8 років тому +1

    I enjoyed this subject matter only because you explain the definitions and the procedures very clearly and your tone of voice is calm and soothing, unlike other instructors that act and speak with an obnoxious attitude. You are awesome!!!

  • @LeMale96
    @LeMale96 8 років тому

    The world needs more youtube teachers like you. You are not the stats teacher we want, but one we need!

  • @solidsnake58
    @solidsnake58 8 років тому +92

    THANK YOU! I'm learning from home and the textbook is all greek to me

    • @GreekGe0rdie
      @GreekGe0rdie 4 роки тому +1

      Τι εννοείς όλα Ελληνικά φίλε μου haha I learnt Greek and it's an amazing language, I just study every night for 30 minutes for 1 year.

    • @marielasanchez3926
      @marielasanchez3926 4 роки тому +2

      Fast forward 4 years, we are all learning from home.

    • @haochen3725
      @haochen3725 3 роки тому +1

      @@marielasanchez3926 lol university of zoom

  • @MrSurojuSoori
    @MrSurojuSoori 6 років тому +2

    This is so simple and really loved the way you explained in simplistic terms, thanks so much. I wish my teachers and professors were like you!

  • @Grey-Kestrel
    @Grey-Kestrel 7 років тому

    With all words of gratitude availed : Thank you for your great manners which is the highest radiance of light in your insightful well-devised structural method .

  • @Yaaaahnehhh
    @Yaaaahnehhh 4 роки тому

    Beautifully short and to the point without confusion. Thanks for the video

  • @kellyvo363
    @kellyvo363 3 роки тому

    Thank you so much for the videos. I have been struggling with Stats until I found you :)

  • @dharmendrasingh-iz1by
    @dharmendrasingh-iz1by 4 роки тому

    This is the best explanation i have ever come across.

  • @gbolabodba
    @gbolabodba 6 років тому +1

    At last!!!!
    It never occurred to me that there is a difference between the standard Normal curve and the normal curve. The standard deviation thing was driving me crazy!
    Thank you!!!

  • @lalalalexxi
    @lalalalexxi 9 років тому

    I've taken through Calc III (in college), and got an A in that. A few years later, here I am taking Stats. I decided to do it online, because after doing Calc III, Stats would OBVIOUSLY be a piece of cake! ...Wrong. I'm having so much trouble with it, and not having a teacher to talk to is horrible. Then I found your videos and all is well! I'm seriously just watching each video you've made as I go along and learning from those. Thank you so much for making these, and for explaining the concepts so well!!!

  • @mechanical1217
    @mechanical1217 9 років тому +45

    the most effective 4 min in youtube

  • @soubia9055
    @soubia9055 8 років тому +6

    Thanks! You are awesome, your voice did not put me to sleep!

  • @SalznPfeffer658
    @SalznPfeffer658 4 роки тому

    You are brilliant in your simplicity! Thank you thank you thank you!

  • @marshculler4683
    @marshculler4683 5 років тому

    Thank you! Your explanation is so simple. Hope you are still active on UA-cam.

  • @TreBlass
    @TreBlass 8 років тому

    So far I've seen that graphs help a lot in understanding stuffs in statistics. it helps us visualise what's there in the distribution. Most of the classroom teachers give pdfs and solve problems using mathematics without telling what is actually happening there.
    so after watching this and some more videos from other channels, I've learnt that graphical approach is the best approach (at least in statistics).

  • @trusfrated8288
    @trusfrated8288 3 роки тому

    i've watched this today
    on 1 dec 2021 almost 10 yrs later..still my profs. couldn't explain it like this...thakyou :)

  • @MrSidney9
    @MrSidney9 7 років тому

    Best explanation out there. Clear and concise.

  • @shourobbiswas3812
    @shourobbiswas3812 11 років тому

    This was really very clear teaching, wish all teacher teaches like this..........

  • @keikomital5571
    @keikomital5571 7 років тому

    You're soo good when youre explaining the topic so cool

  • @mamadetaslimtorabally7363
    @mamadetaslimtorabally7363 8 років тому +18

    Excellent! It just couldn't be clearer. Wow!

    • @workingstiff19
      @workingstiff19 7 років тому +3

      You took the words right out of my mouth, Taz. This is EXCELLENT!

  • @mundus-p6m
    @mundus-p6m 6 років тому +1

    You can excellent teacher. Very clear. Thank you. I will down your videos to help others

  • @cherieservello4891
    @cherieservello4891 7 років тому

    WOW! Thanks, Making it simple is soooooo appreciated. Without understanding, hard to go further.

  • @centralcal209
    @centralcal209 7 років тому

    You are gifted in teaching, please keep it up. Your style is the same as PatrickMJ.

    • @poysermath
      @poysermath  7 років тому

      Thanks Sam. But PatrickMJ is much better than me! (smile)

    • @fahadsikander3827
      @fahadsikander3827 7 років тому

      And this gesture is the sign of great personality...

  • @mehediazad1780
    @mehediazad1780 2 роки тому

    this is awesome. straight to the point. loved it.

  • @babitasalam8949
    @babitasalam8949 4 роки тому +1

    It is very helpful to me ,good job keep up .

  • @Phenix18
    @Phenix18 5 років тому +1

    It was so much informative..........

  • @professortruth56
    @professortruth56 3 роки тому

    Awesome description and definition!

  • @macmolifi
    @macmolifi 8 років тому +13

    You the reason I aced the test .. thank you!

    • @sagargoel3834
      @sagargoel3834 5 років тому

      Apparently this is the only question which appeared on your exam😂

  • @abhishek15894
    @abhishek15894 6 років тому +1

    Awesome Job Mate. Hope it helps me clear my interview tomorrow.

  • @johnsoncarvalho1155
    @johnsoncarvalho1155 6 років тому

    Your explanations are truly amazing.....Thank You!

  • @memjaym
    @memjaym 10 років тому

    Really concise and straight to the point! I like it :)

  • @clararuth6678
    @clararuth6678 7 років тому

    i'm a homeschooled 10th grader and i'm learning this but since i only see my teacher once a week and i do my work online i am expected to figure it out myself. this video saved my ass

  • @TheMagicTrigger
    @TheMagicTrigger 9 років тому +2

    had to watch on another computer mine was giving no sound, althogu i can listen to other youtube video's just fine. im glad i spent the effort to watch, you explain it in such a clear way thank you very much. for some reason i cant get sound from any of your video's, guess ill be watching them on some one else's computer.
    PS. i tried watching other people explain this and they were not even close to how clear and easy you made this.

    • @TheMagicTrigger
      @TheMagicTrigger 9 років тому +1

      +TheMagicTrigger ok working a month later on my PC. dont give up this guy Explains Flawlessly.

  • @jaylee842
    @jaylee842 5 років тому

    Thank you for the crystal clear explanation.

  • @ashleegalliford6347
    @ashleegalliford6347 8 років тому

    You are the only thing that makes sense. Thank you!

  • @dubori100
    @dubori100 4 роки тому

    You are awesome 🥺🥺 Saved my time ♥️

  • @syedmammar1
    @syedmammar1 6 років тому +2

    Best explanation, thank you for this!

  • @tiarasukdeo7306
    @tiarasukdeo7306 8 років тому

    Best Stats lecturer ever :D ! Love all your videos its simple and concise as you work the problems with us ^.^ ! Fun :D -Your a awesome lecturer that is not afraid to laugh at his mistakes as well ^.^ which makes it more fun learning from you :D .Thank you,Sir with all my heart

  • @alirezakarimi4977
    @alirezakarimi4977 5 років тому

    Man I was looking for this for 30 mins.tnx

  • @cookingwithkhaing
    @cookingwithkhaing 5 років тому

    I should have watch this video since the begining. You can explained it very well. Thank you so mich. :)

  • @dheebikrish374
    @dheebikrish374 2 роки тому

    Great teaching 🎉

  • @kita_ch
    @kita_ch 4 роки тому

    effective explaination. thankyou sm 👏👏👏

  • @kacperkielban4242
    @kacperkielban4242 6 років тому

    thx my teacher made it hard for mr to understand but ur explication made it easier

  • @AshwinChanil
    @AshwinChanil 5 років тому

    Great Teacher indeed.

  • @swaglikeabosss
    @swaglikeabosss 8 років тому

    great!! much better than listening to my stats teacher

  • @lisapurnawati884
    @lisapurnawati884 10 років тому

    Concise and very very clear! Thanks!

  • @alexmelchor9097
    @alexmelchor9097 8 років тому

    It is clearly explained...do you have more of probability & statistics topics like Gumbel & other probability distributions?

  • @evazquez638
    @evazquez638 10 років тому

    Thank you for explaining it in layman's terms. Great help.

  • @kasunkt
    @kasunkt 4 роки тому

    really helped .Thank you for the job.

  • @prashanth2601
    @prashanth2601 6 років тому

    Thank you soo much Sir, I never concentrated on the 5th and 6th points. Good Info, Thanks once again :)

  • @TheseWhiteNights
    @TheseWhiteNights 7 років тому

    THANK YOU, my professor was so confusing explaining this

  • @LetsThinkLater
    @LetsThinkLater 8 років тому +1

    Really wish you are my stats professor!!

  • @uttaraasthana7983
    @uttaraasthana7983 6 років тому

    very nice explanation. keep this up

  • @yeseniatania78
    @yeseniatania78 6 років тому

    Very good explanation, thank you so much.

  • @tianhanipah9783
    @tianhanipah9783 3 роки тому

    It helps a loooooot! Thank you😭

  • @Studysupply
    @Studysupply 8 років тому

    perfect perfect perfect thank you very much it is really helpful and clear please keep going

  • @helenmariam7628
    @helenmariam7628 6 років тому

    very very nice ...short and describtive

  • @farzananaved7857
    @farzananaved7857 8 років тому

    Excellent explanation

  • @tasity1041
    @tasity1041 7 років тому

    Very helpful and straight forward thanks

  • @rupinchaudhry592
    @rupinchaudhry592 3 роки тому

    Thanks...nicely explained

  • @penstudent7377
    @penstudent7377 5 років тому

    omg I was stuck and this helped! My teacher is terrible.

  • @khalidahmed6855
    @khalidahmed6855 8 років тому

    Thank you for the video, you are awesome. Its very helpful

  • @meiyang1324
    @meiyang1324 10 років тому

    Nice job! Thanks for your video.

  • @kwatever11
    @kwatever11 9 років тому +1

    very good explanation, thumbs up (:
    very well explained.

  • @23power
    @23power 11 років тому +4

    You're a genius, thanks

  • @nishantghode1675
    @nishantghode1675 9 років тому

    very helpful..thank you so much.
    helping in Statistics

  • @UncleBuck560
    @UncleBuck560 6 років тому

    Great explanation!

  • @kanwalkhan5860
    @kanwalkhan5860 5 років тому +2

    sir very nice

  • @invader633
    @invader633 8 років тому +4

    Thank You so much!! God Bless!

  • @imamassalieh3536
    @imamassalieh3536 10 років тому

    Many thanks to you... for sure it's help a lot

  • @TheBbenja
    @TheBbenja 8 років тому

    thank you very much for your help.

  • @youssry191
    @youssry191 7 років тому

    ... Dear Sir .... Thanks a lot for your invaluable videos please could you numbering them in sequence to enable me and others to follow the course in sequence ...thanks a gain for your efforts

  • @Raja-tt4ll
    @Raja-tt4ll 6 років тому

    Nice Video, Thanks

  • @Sopherwit
    @Sopherwit 9 років тому +1

    It is very clear! Thank your.

  • @shamsrays9980
    @shamsrays9980 5 років тому

    thank you very helpful

  • @clarklambert
    @clarklambert 10 років тому

    I'm already challenging someone else on UA-cam for this, but the area under your curve > 1, isn't it? The height at the mean should be only ≈ 0.4 other than that, I like your delivery and presentation. You even put the +1st SD on the inflection point. Thank you. Pretty good for a quick sketch!
    But does the integral matter? I think so: when Psych students get tests back with a Z-score, an improperly swollen curve exaggerates their rank in the population (as seen from comparing areas left and right of their Z). But the graph is just that: it's supposed to be a picture that reflects the data rather than distorting it.
    Notice how on the swollen curve we can visually square the length from the origin to SD1 and it fits under the curve. In fact there's room for another such square on the negative x-axis. That means the area is already 2 and climbing, since there's still space above the 2 squares and out down the tails. Without an integral of 1, we are forced to disqualify the curve as a probability distribution.
    Please plug the SND equation into a graphing calc pgm to see the true curve. You'll see what I mean: they should have called it a cymbal instead of a bell!

    • @chrisjohnston2043
      @chrisjohnston2043 9 років тому

      clarklambert Well, depends on what you mean by area. When you're talking about the probability, then yes, the area under the curve from -infinity to infinity will always equal 1. Let's say the area under the curve of some distribution from - infinity to positive infinity equals 5 units. If you want the area under the curve to equal some probability though, you can just divide the function by 5 and voila. This is because by convention probabilities are out of 1. You're talking about the probability density function, and the 0.4 does not mean what you think it means. The number on the Y axis is the number that you would multiply the it's corresponding infintesimally small x interval to get the corresponding area under the curve of that infintesimally small x interval, (or probability).
      Another way of putting it. If you have 5 possible scores on a test, and you had 10 people score a 1 ,15 people score a 2, 20 people score a 3, 15 people score a 4, and 10 people score a 5, the area under the curve on a histogram would be 15+20+30+20+15 = 100. But that's not what a probability density function is, the equivalent would be like this. Instead of the y axis being the "total number of people" who got that score, it would be the amount of people out of 1, or the percentage of people divided by 100. So the probability density function for this would be 0.15 for 1, 0.2 for 2, 0.3 for 3, 0.2 for 4, 0.15 for 5. And the area under the curve would be 1.

  • @DarwishJuniorX
    @DarwishJuniorX 5 років тому

    Thank you♥️♥️♥️♥️

  • @georginaanum7612
    @georginaanum7612 5 років тому

    soo interesting...very helpful

  • @keshianieuenkirk3628
    @keshianieuenkirk3628 5 років тому +1

    Omg....Thank you for this!

  • @shaymaalix3476
    @shaymaalix3476 5 років тому

    Hello sir. May I ask if the standard normal distribution and the standard normal curve are the same?

  • @oshadhiwijesinghe4491
    @oshadhiwijesinghe4491 3 роки тому

    Thank you😀

  • @ok-uu2zf
    @ok-uu2zf 6 років тому

    How is the area of the bell curve 1?

  • @ektapatel111
    @ektapatel111 4 роки тому

    Thank u sir , 😇

  • @abdulkadirali1231
    @abdulkadirali1231 8 років тому +1

    best teacher

  • @Jdonovanford
    @Jdonovanford 10 років тому

    Could you explain why in statistical inference one should never standardize a variable according to a sample distribution of the same data and why that would be circular reasoning?

  • @thupaki3673
    @thupaki3673 4 роки тому

    does skewness between -0.5 to 0.5 is normally distributed?

  • @ravindranvenkataraman1965
    @ravindranvenkataraman1965 7 років тому

    nice explanation

  • @cjwsk12
    @cjwsk12 9 років тому

    So helpful, thanks!

  • @shivangirajouriya3812
    @shivangirajouriya3812 4 роки тому

    Link to next video??

  • @judithugochiokparaukeje852
    @judithugochiokparaukeje852 9 років тому

    it does help!!!! thank you so much!!!

  • @alagappank1242
    @alagappank1242 3 роки тому

    Thankyou sir..

  • @jasonhall947
    @jasonhall947 8 років тому

    Excellent!

  • @sylviamani9746
    @sylviamani9746 7 років тому

    thanks
    God bless you richly

  • @komalsiddiqui5619
    @komalsiddiqui5619 7 років тому

    could you please also tell me the second order differential of gaussian curve

  • @portb7014
    @portb7014 7 років тому

    you are great man

  • @ABK4ds
    @ABK4ds 9 років тому

    Thank you .. thats really helps
    🌸