КОМЕНТАРІ •

  • @WebsterLincoln
    @WebsterLincoln 2 роки тому +8

    I would describe that as a positively skewed normal distribution, not an exponential distribution. Also, it's the 68-95-99.7 rule

  • @abdallahelmoctar7635
    @abdallahelmoctar7635 Рік тому +3

    Such a simple and straight forward refresher. I'm grateful for your work

  • @AllieZhao
    @AllieZhao Рік тому

    These are crucial concepts. Thanks

  • @mahmutozmen1261
    @mahmutozmen1261 2 роки тому +2

    Thanks for such a great content and your effort. Would you mind explaining further why you think that mode = median? Since this graph seems like a positively skewed graph, I though mode is around 3, median 4 or 5 and mean between 6 and 10.

  • @SaramaKamal
    @SaramaKamal Рік тому

    Could you mention tools used to design and present your slides thanks!!!

  • @shir0tei
    @shir0tei 2 роки тому +2

    Thanks for the video! I The correlation formula is wrong though, the covariance is the numerator divided by n.

  • @basmaelkhamlichi8223
    @basmaelkhamlichi8223 2 роки тому +8

    Hypothesis testing and P value nicely explained, thank you!

  • @jcokonkwo
    @jcokonkwo 2 роки тому +4

    I definitely appreciate the explanation then the applied DS examples right after. Thank you!

  • @RedShipsofSpainAgain
    @RedShipsofSpainAgain Рік тому +5

    11:16. I think you have a typo: The Normal distribution should be 68-95-99.7%, not 65-95-99.7%

  • @Foba_Bett
    @Foba_Bett Рік тому +1

    I am binge-watching your channel ! 😎
    In the correlation section - why not just straight up remove the outliers? 🤔

    • @gaboqv
      @gaboqv Рік тому

      that's what he is telling with a fancy name, you will use quartiles to confirm which of the points are outliers

  • @dreamingaparisdream3178
    @dreamingaparisdream3178 2 роки тому

    Also where is the link for Meta Statistical Interview questions video please?

  • @jacksun7999
    @jacksun7999 Місяць тому

    6:43 should the numerator be cov(X,Y)? Seems there is a 1/(N-1) term missing.

  • @HarryPotter-st2cn
    @HarryPotter-st2cn 2 роки тому

    Great content. Is non-normal distributions listed separately to put emphasis on it? I believe it will be included within the concept of the overall distributions

  • @benxneo
    @benxneo 2 роки тому +2

    could you give me ideas for data science projects that deliver value to businesses

  • @stanislavdidenko8436
    @stanislavdidenko8436 Рік тому

    2pm - poisson distribution

  • @bandai2
    @bandai2 2 роки тому

    could you also use Spearman Correlation if you have outliers in your data?

  • @pal999
    @pal999 2 роки тому

    If you're using a real world example, you shouldn't "ASSUME" the SD to be something. Can you find out how it's determined in real world?

  • @anirbansarkar6306
    @anirbansarkar6306 10 місяців тому

    Can you help me understand on what basis have you assumed population standard deviation to be 20?

  • @dreamingaparisdream3178
    @dreamingaparisdream3178 2 роки тому +4

    For the normal distribution, is it 66-95-99.7 rule or 68-95-99.7?

    • @TheNIK21HIL
      @TheNIK21HIL 2 роки тому +1

      it is 68% within 1 SD. it must be a typo on Dan's end. The graph though does represent it correctly.

    • @ASHISHDHIMAN1610
      @ASHISHDHIMAN1610 2 роки тому

      @@TheNIK21HIL yeah typo

  • @BrianSalamone
    @BrianSalamone 3 місяці тому

    1:08 8 hours a day in Facebook????? What is the X at the bottom?

  • @michaell9804
    @michaell9804 2 роки тому +3

    You failed to mention bayes theorem and binomial distribution which is used here just as heavily as normal distribution particularly when quantifying the probability distribution of the accuracy of unsupervised learning models. This video is not comprehensive at all

    • @Omegageekk
      @Omegageekk 2 роки тому +13

      If you thought a video titled “5 concepts in statistics you should know” would be a comprehensive breakdown of literally every stats concept you need for data science, then I have a bridge to sell you.