In probability theory and statistics, variance is the expected value of the squared deviation from the mean of a random variable. The standard deviation...
58 KB (10,078 words) - 09:09, 23 August 2024
In statistics and machine learning, the bias–variance tradeoff describes the relationship between a model's complexity, the accuracy of its predictions...
28 KB (3,896 words) - 01:52, 16 September 2024
Look up variance in Wiktionary, the free dictionary. In probability theory and statistics, variance measures how far a set of numbers are spread out....
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The Allan variance (AVAR), also known as two-sample variance, is a measure of frequency stability in clocks, oscillators and amplifiers. It is named after...
64 KB (9,318 words) - 19:58, 20 April 2024
Weighted arithmetic mean (redirect from Weighted variance)
variance σ i 2 {\displaystyle \sigma _{i}^{2}} , all having the same mean, one possible choice for the weights is given by the reciprocal of variance:...
44 KB (8,991 words) - 20:40, 4 July 2024
Analysis of variance (ANOVA) is a collection of statistical models and their associated estimation procedures (such as the "variation" among and between...
56 KB (7,597 words) - 13:54, 12 August 2024
Homoscedasticity and heteroscedasticity (redirect from Homogeneity of variance)
all its random variables have the same finite variance; this is also known as homogeneity of variance. The complementary notion is called heteroscedasticity...
27 KB (3,191 words) - 23:32, 30 August 2024
theory, the law of total variance or variance decomposition formula or conditional variance formulas or law of iterated variances also known as Eve's law...
15 KB (2,796 words) - 17:38, 29 May 2024
Standard deviation (redirect from Standard variance)
population, data set, or probability distribution is the square root of its variance. It is algebraically simpler, though in practice less robust, than the...
55 KB (7,609 words) - 13:58, 17 September 2024
Covariance matrix (redirect from Variance-covariance matrix)
matrix (also known as auto-covariance matrix, dispersion matrix, variance matrix, or variance–covariance matrix) is a square matrix giving the covariance between...
34 KB (5,420 words) - 12:04, 3 September 2024