In mathematics and statistics, deviation serves as a measure to quantify the disparity between an observed value of a variable and another designated...

In statistics, the standard deviation is a measure of the amount of variation of the values of a variable about its mean. A low standard deviation indicates...

In statistics, the median absolute deviation (MAD) is a robust measure of the variability of a univariate sample of quantitative data. It can also refer...

dimension. Deviation (statistics), the difference between the value of an observation and the mean of the population in mathematics and statistics Standard...

The average absolute deviation (AAD) of a data set is the average of the absolute deviations from a central point. It is a summary statistic of statistical...

In probability theory and statistics, the geometric standard deviation (GSD) describes how spread out are a set of numbers whose preferred average is the...

In statistics and in particular statistical theory, unbiased estimation of a standard deviation is the calculation from a statistical sample of an estimated...

Other summary statistics of statistical dispersion also called precision (or imprecision) include the reciprocal of the standard deviation, p = 1 σ {\displaystyle...

In statistics, the standard score is the number of standard deviations by which the value of a raw score (i.e., an observed value or data point) is above...

Wagner Deviation (statistics) Mean difference (disambiguation) This disambiguation page lists articles associated with the title Mean deviation. If an...

The root mean square deviation (RMSD) or root mean square error (RMSE) is either one of two closely related and frequently used measures of the differences...

absolute deviation (MAD) Average absolute deviation (or simply called average deviation) Distance standard deviation These are frequently used (together with...

Directional statistics (also circular statistics or spherical statistics) is the subdiscipline of statistics that deals with directions (unit vectors in...

In probability theory and statistics, the coefficient of variation (CV), also known as normalized root-mean-square deviation (NRMSD), percent RMS, and...

theory and statistics, variance is the expected value of the squared deviation from the mean of a random variable. The standard deviation (SD) is obtained...

standard deviation, variance, range, interquartile range, absolute deviation, mean absolute difference and the distance standard deviation. Measures...

In statistics and optimization, errors and residuals are two closely related and easily confused measures of the deviation of an observed value of an...

outliers. The most common such robust statistics are the interquartile range (IQR) and the median absolute deviation (MAD). These are contrasted with conventional...

structural equation models Deviance (statistics) Deviation (statistics) Divergence (statistics) Deviance (disambiguation) Deviation (disambiguation) This disambiguation...

standard deviation in a unimodal distribution". Hippel, Paul T. von (2005). "Mean, Median, and Skew: Correcting a Textbook Rule". Journal of Statistics Education...

estimate of a parameter) is the standard deviation of its sampling distribution or an estimate of that standard deviation. If the statistic is the sample mean...

include the standard deviation (or variance), the minimum and maximum values of the variables, kurtosis and skewness. Descriptive statistics provide simple...

and are parameterized by mean and standard deviation. That means that if the mean and standard deviation are known and if the distribution is normal...

μ (mu) is the mean of the distribution, and σ (sigma) is its standard deviation: Pr ( μ − 1 σ ≤ X ≤ μ + 1 σ ) ≈ 68.27 % Pr ( μ − 2 σ ≤ X ≤ μ + 2 σ ) ≈...

deviation from the intended performance or behavior. One reference differentiates between "error" and "mistake" as follows: An 'error' is a deviation...

In statistics, the mean signed difference (MSD), also known as mean signed deviation and mean signed error, is a sample statistic that summarises how...

Detrended fluctuation analysis Deviance (statistics) Deviance information criterion Deviation (statistics) Deviation analysis (disambiguation) DFFITS – a...

distributions with different standard deviations; under this model, non-robust methods like a t-test work poorly. Robust statistics seek to provide methods that...

In statistics, Bessel's correction is the use of n − 1 instead of n in the formula for the sample variance and sample standard deviation, where n is the...

the first and third quartiles), half the IQR equals the median absolute deviation (MAD). The median is the corresponding measure of central tendency. The...