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

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

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.

These are crucial concepts. Thanks

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

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

Hypothesis testing and P value nicely explained, thank you!

@DataInterview

2 жыл бұрын

Thank you!

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

@DataInterview

2 жыл бұрын

That's the best way to learn :)

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

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

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

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

@eresque7766

Жыл бұрын

late but yeah u could

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

2pm - poisson distribution

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

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

@TheNIK21HIL

2 жыл бұрын

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

@ASHISHDHIMAN1610

2 жыл бұрын

@@TheNIK21HIL yeah typo

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

@gaboqv

Жыл бұрын

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

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?

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

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

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

2 жыл бұрын

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.