Mathematics

Standard Deviation Calculator

Standard Deviation Calculator

Calcola Standard Deviation

Risultati

About Standard Deviation

Standard deviation is a measure of the amount of variation or dispersion in a dataset. It tells you how spread out the numbers are from the average (mean).

Formula

σ = √(Σ(x - μ)² / n)
Where:
• σ = Standard deviation
• x = Each value in the dataset
• μ = Mean of the dataset
• n = Numero of values

Interpretation

  • • Low standard deviation = values are close to the mean
  • • High standard deviation = values are spread out
  • • Used in statistics, finance, and research

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