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Standard Deviation Calculator

Calculate population and sample standard deviation with step-by-step breakdown.

Enter your data set (comma, space, or newline separated):

Population Std Dev (σ)

Variance (σ²):

Sample Std Dev (s)

Variance (s²):

Mean (μ):

Count (N):

Step-by-Step Breakdown

Value (x_i)	x_i - μ	(x_i - μ)²

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