Standard Deviation Calculator
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Formula:
Population Standard Deviation (σ)
σ = √[ Σ(x − μ)² / N ]
Sample Standard Deviation (s)
s = √[ Σ(x − x̄)² / (n − 1) ]
Where:
x = observation
μ or x̄ = mean
N or n = number of observations
Population Standard Deviation (σ)
σ = √[ Σ(x − μ)² / N ]
Sample Standard Deviation (s)
s = √[ Σ(x − x̄)² / (n − 1) ]
Where:
x = observation
μ or x̄ = mean
N or n = number of observations