How do you calculate skewness for ungrouped data?
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Formula
- Sample Standard deviation S=√∑(x-ˉx)2n-1.
- Skewness =∑(x-ˉx)3(n-1)⋅S3.
- Kurtosis =∑(x-ˉx)4(n-1)⋅S4.
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