Standardabweichung (EN)

Standardabweichung

The standard deviation is a central measure of dispersion that quantifies the average deviation of data points from the arithmetic mean. It is the square root of the variance and has the same unit as the original data, which facilitates its interpretation. A small standard deviation indicates that the data points are close to the mean, while a large standard deviation indicates a high dispersion of the data. It is a fundamental concept in descriptive statistics and data analysis.

In Context

• Typically used together with mean, variance, and normal distribution
• Related to: Variance, interquartile range, confidence interval
• Example applications: Quality control in production, evaluation of financial risks, scientific data analysis