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Standard Deviation Calculator

Compute statistical metrics including mean, variance, sample standard deviation (s), and population standard deviation (σ).

Interactive Standard Deviation Calculator

Math

Statistical Metrics

Sample Std Dev (s): 15.8114
Mean (μ): 30.00
Variance (s²): 250.00
Count (N): 5

How to Use the Standard Deviation Calculator

  • Enter a set of numbers separated by commas or spaces.

Formula & Calculation Methodology

σ = √[ Σ(x - μ)² / N ]

Our mathematical algorithms adhere to standard scientific and financial guidelines to deliver maximum accuracy.

Frequently Asked Questions

What is the difference between sample and population standard deviation?

Sample standard deviation divides by (N - 1) to correct for sample bias, whereas population standard deviation divides by N.

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