Standard Deviation Calculator
Calculate standard deviation, variance, and related statistics for a dataset. Supports both sample and population calculations.
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什么是 Standard Deviation?
Standard deviation measures the amount of variation or dispersion in a dataset. A low standard deviation indicates values are close to the mean, while high standard deviation indicates values are spread out. It is widely used in finance to measure volatility, in manufacturing for quality control, and in research to measure data reliability. Sample standard deviation (n-1) 提供 an unbiased estimate for population data.
How to use
输入您的 dataset values separated by commas, spaces, or new lines. 选择 whether your data represents a sample (using n-1) or the entire population (using N). The 计算器 computes standard deviation, variance, mean, median, range, coefficient of variation, and other statistical measures.
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