Standard Deviation Formula

Sample Standard Deviation
The Sample Standard Deviation Formaula is  s= frac{sqrt{sum{x-bar{x}}^2}}{n-1}

Population Standard Deviation

The population standard deviation formula is s= sqrt{frac{n(sum{x}^2)-(sum{x})^2}{n(n-1)}}

Frequency Table : Standard Deviation

Frequency Table Standard Deviation is s= sqrt{frac{n[sum(f cdot {x}^2)]-[sum(f cdot x)]^2}{n(n-1)}}

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Last Modified on September 7, 2013 by JoeStat

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