Standard deviation - Wikipedia The standard deviation of a random variable, sample, statistical population, data set, or probability distribution is the square root of its variance (For a finite population, variance is the average of the squared deviations from the mean )
Standard Deviation - GeeksforGeeks Standard deviation is a measure used in statistics to understand how the data points in a set are spread out from the mean value It indicates the extent of the data's variation and shows how far individual data points deviate from the average
Standard Deviation - Definition, Symbol, Formula, Graph, Examples Standard deviation is a statistical measure that shows how much a group of data is spread out or dispersed from its mean value (average) A smaller standard deviation value indicates that the values are close to the mean, whereas a larger value means the dataset is spread out further from the mean
Formula | How to Calculate Standard Deviation? - Cuemath It tells how the values are spread across the data sample and it is the measure of the variation of the data points from the mean The standard deviation of a data set, sample, statistical population, random variable, or probability distribution is the square root of its variance
Standard Deviation - Definition, Examples Practice Problems Standard deviation represents the degree of dispersion or scatter of data points relative to their mean It gauges how values are spread across a data sample, measuring the variation from the mean
Standard Deviation: Simple Definition, Step by Step Video Standard deviation (SD) is a measure of the amount of variation in a set of values A low SD—close to zero—indicates that the values tend to be close to the mean of the set, while a high SD indicates that the values are spread out over a wider range