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- Chi-squared_distribution abstract "In probability theory and statistics, the chi-squared distribution (also chi-square or χ²-distribution) with k degrees of freedom is the distribution of a sum of the squares of k independent standard normal random variables. A special case of the gamma distribution, it is one of the most widely used probability distributions in inferential statistics, e.g., in hypothesis testing or in construction of confidence intervals. When there is a need to contrast it with the noncentral chi-squared distribution, this distribution is sometimes called the central chi-squared distribution.The chi-squared distribution is used in the common chi-squared tests for goodness of fit of an observed distribution to a theoretical one, the independence of two criteria of classification of qualitative data, and in confidence interval estimation for a population standard deviation of a normal distribution from a sample standard deviation. Many other statistical tests also use this distribution, like Friedman's analysis of variance by ranks.".
- Chi-squared_distribution thumbnail Chi-square_pdf.svg?width=300.
- Chi-squared_distribution wikiPageExternalLink chi-squared-distribution-calculator.html.
- Chi-squared_distribution wikiPageExternalLink StatisticsAssociatedWithNormalSamples.
- Chi-squared_distribution wikiPageExternalLink c.html.
- Chi-squared_distribution wikiPageExternalLink 2348373.
- Chi-squared_distribution wikiPageExternalLink chigf.htm.
- Chi-squared_distribution wikiPageID "113424".
- Chi-squared_distribution wikiPageRevisionID "606144762".
- Chi-squared_distribution cdfImage "321".
- Chi-squared_distribution hasPhotoCollection Chi-squared_distribution.
- Chi-squared_distribution id "p/c022100".
- Chi-squared_distribution kurtosis "12".
- Chi-squared_distribution mean "k".
- Chi-squared_distribution mgf "for t < ½".
- Chi-squared_distribution mode "max{ k − 2, 0 }".
- Chi-squared_distribution notation "or".
- Chi-squared_distribution pdfImage "321".
- Chi-squared_distribution support "x ∈ [0, +∞)]".
- Chi-squared_distribution title "Chi-squared distribution".
- Chi-squared_distribution type "density".
- Chi-squared_distribution variance "2".
- Chi-squared_distribution subject Category:Continuous_distributions.
- Chi-squared_distribution subject Category:Exponential_family_distributions.
- Chi-squared_distribution subject Category:Infinitely_divisible_probability_distributions.
- Chi-squared_distribution subject Category:Normal_distribution.
- Chi-squared_distribution subject Category:Probability_distributions.
- Chi-squared_distribution type Abstraction100002137.
- Chi-squared_distribution type Arrangement105726596.
- Chi-squared_distribution type Cognition100023271.
- Chi-squared_distribution type ContinuousDistributions.
- Chi-squared_distribution type Distribution105729036.
- Chi-squared_distribution type PsychologicalFeature100023100.
- Chi-squared_distribution type Structure105726345.
- Chi-squared_distribution comment "In probability theory and statistics, the chi-squared distribution (also chi-square or χ²-distribution) with k degrees of freedom is the distribution of a sum of the squares of k independent standard normal random variables. A special case of the gamma distribution, it is one of the most widely used probability distributions in inferential statistics, e.g., in hypothesis testing or in construction of confidence intervals.".
- Chi-squared_distribution label "Chi-Quadrat-Verteilung".
- Chi-squared_distribution label "Chi-kwadraatverdeling".
- Chi-squared_distribution label "Chi-quadrado".
- Chi-squared_distribution label "Chi-squared distribution".
- Chi-squared_distribution label "Distribución χ²".
- Chi-squared_distribution label "Distribuzione chi quadrato".
- Chi-squared_distribution label "Loi du χ²".
- Chi-squared_distribution label "Rozkład chi kwadrat".
- Chi-squared_distribution label "Распределение хи-квадрат".
- Chi-squared_distribution label "توزيع خي تربيع (توزيع مربع كاي)".
- Chi-squared_distribution label "カイ二乗分布".
- Chi-squared_distribution label "卡方分佈".
- Chi-squared_distribution sameAs Χ²_rozdělení.
- Chi-squared_distribution sameAs Chi-Quadrat-Verteilung.
- Chi-squared_distribution sameAs Distribución_χ².
- Chi-squared_distribution sameAs Khi-karratu_banaketa.
- Chi-squared_distribution sameAs Loi_du_χ².
- Chi-squared_distribution sameAs Distribusi_khi-kuadrat.
- Chi-squared_distribution sameAs Distribuzione_chi_quadrato.
- Chi-squared_distribution sameAs カイ二乗分布.
- Chi-squared_distribution sameAs 카이제곱_분포.
- Chi-squared_distribution sameAs Chi-kwadraatverdeling.
- Chi-squared_distribution sameAs Rozkład_chi_kwadrat.
- Chi-squared_distribution sameAs Chi-quadrado.
- Chi-squared_distribution sameAs m.0sxdx.
- Chi-squared_distribution sameAs Q243462.
- Chi-squared_distribution sameAs Q243462.
- Chi-squared_distribution sameAs Chi-squared_distribution.
- Chi-squared_distribution wasDerivedFrom Chi-squared_distribution?oldid=606144762.
- Chi-squared_distribution depiction Chi-square_pdf.svg.
- Chi-squared_distribution isPrimaryTopicOf Chi-squared_distribution.
