Online Calculators > Math Calculators > Standard Deviation Calculator

Standard Deviation Calculator

Standard Deviation Calculator to calculate the standard deviation from a set of numbers. Standard Deviation Formula shows how to calculate standard deviation.

Standard Deviation Calculator Online

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Standard Deviation Calculator Results

Total Numbers 10
Sum of Numbers 318
Mean 31.8
Sample Variance (s2) 1049.06666666667
Standard Deviation (s) 32.3892986442539

Standard Deviation Formula

Following is the standard deviation formula on how to calculate standard deviation.

Sample Variance =

Standard Deviation = S = √Sample Variance, where

s2 = sample variance
s = standard deviation
x1, ..., xN = the sample data set
x̄ = mean value of the sample data set
N = size of the sample data set

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