- Look up
variance in Wiktionary, the free dictionary. In
probability theory and statistics,
variance measures how far a set of
numbers are
spread out....
- example, the
variance of a sum of
uncorrelated random variables is
equal to the sum of
their variances. A
disadvantage of the
variance for practical...
- normality, and
homogeneity of
variances of the residuals. The randomization-based
analysis ****umes only the
homogeneity of the
variances of the
residuals (as a...
- x} . The
disturbance in
matrix D is
homoscedastic because the
diagonal variances are constant, even
though the off-diagonal
covariances are non-zero and...
-
categories of
variances generally are used in the
practice of
local land use planning: area (or bulk)
variances and use
variances. An area
variance is the most...
- 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...
- of
users of the
variance information and may
include e.g.:
Variable cost
variances Direct material variances Direct labour variances Variable production...
- statistics, an F-test of
equality of
variances is a test for the null
hypothesis that two
normal po****tions have the same
variance. Notionally, any F-test can...
- readers, a more
informative name is "Welch's
unequal variances t-test" — or "unequal
variances t-test" for brevity. Sometimes, it is
referred as Satterthwaite...
- In
statistics and
machine learning, the bias–
variance tradeoff describes the
relationship between a model's complexity, the
accuracy of its predictions...