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is there only these 3 types of std, like 1,2, 3
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done, best course
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![](https://codanics.com/wp-content/uploads/2024/04/IMG_16954467347071342.jpg)
Done
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ok
![](https://codanics.com/wp-content/uploads/2024/04/IMG_20240410_175137-1-scaled.jpg)
Done
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ok
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DONE
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ok
![](https://codanics.com/wp-content/uploads/2024/02/2.jpg)
If SD=1 it covers 68%, if SD=2 it covers 95% of data and if SD=3 then we can say 99.7% has been covered.
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I learned normal distribution (Gaussian distribution) and standard deviation.
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![](https://codanics.com/wp-content/uploads/2023/10/e24e3cc0-f9cd-49cc-9e5e-e7fea619bd42.jpg)
I learned normal distribution (Gaussian distribution) and standard deviation.
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![](https://codanics.com/wp-content/uploads/2023/09/IMG20230302214623.jpg)
Done
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done
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ok
good