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- Variance abstract "In probability theory and statistics, variance measures how far a set of numbers is spread out. (A variance of zero indicates that all the values are identical.) Variance is always non-negative: A small variance indicates that the data points tend to be very close to the mean (expected value) and hence to each other, while a high variance indicates that the data points are very spread out from the mean and from each other.The square root of variance is called the standard deviation.The variance is one of several descriptors of a probability distribution. In particular, the variance is one of the moments of a distribution. In that context, it forms part of a systematic approach to distinguishing between probability distributions. While other such approaches have been developed, those based on moments are advantageous in terms of mathematical and computational simplicity. The variance is a parameter that describes, in part, either the actual probability distribution of an observed population of numbers, or the theoretical probability distribution of a sample (a not-fully-observed population) of numbers. In the latter case, a sample of data from such a distribution can be used to construct an estimate of its variance: in the simplest cases this estimate can be the sample variance.".
- Variance wikiPageID "32344".
- Variance wikiPageRevisionID "606425821".
- Variance align "right".
- Variance caption "Distribution and cumulative distribution of s2/σ2, for various values of ν = n − 1, when the yi are independent normally distributed.".
- Variance direction "vertical".
- Variance hasPhotoCollection Variance.
- Variance image "Scaled chi squared cdf.svg".
- Variance image "Scaled chi squared.svg".
- Variance width "250".
- Variance subject Category:Articles_containing_proofs.
- Variance subject Category:Data_analysis.
- Variance subject Category:Statistical_deviation_and_dispersion.
- Variance subject Category:Theory_of_probability_distributions.
- Variance comment "In probability theory and statistics, variance measures how far a set of numbers is spread out.".
- Variance label "Variance (statistiques et probabilités)".
- Variance label "Variance".
- Variance label "Variantie".
- Variance label "Varianz (Stochastik)".
- Variance label "Varianza".
- Variance label "Varianza".
- Variance label "Variância".
- Variance label "Wariancja".
- Variance label "Дисперсия случайной величины".
- Variance label "分散".
- Variance label "方差".
- Variance sameAs Rozptyl_(statistika).
- Variance sameAs Varianz_(Stochastik).
- Variance sameAs Διακύμανση.
- Variance sameAs Varianza.
- Variance sameAs Bariantza.
- Variance sameAs Variance_(statistiques_et_probabilités).
- Variance sameAs Varians.
- Variance sameAs Varianza.
- Variance sameAs 分散.
- Variance sameAs 분산.
- Variance sameAs Variantie.
- Variance sameAs Wariancja.
- Variance sameAs Variância.
- Variance sameAs m.07ycq.
- Variance sameAs Q175199.
- Variance sameAs Q175199.
- Variance wasDerivedFrom Variance?oldid=606425821.
- Variance isPrimaryTopicOf Variance.
