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.
Total Numbers 
10 
Sum of Numbers 
318 
Mean 
31.8 
Sample Variance (s^{2}) 
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
s^{2} = 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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