A conditional probability mass function

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorBoucher, Chris-
Data de aceite: dc.date.accessioned2019-08-21T19:27:43Z-
Data de disponibilização: dc.date.available2019-08-21T19:27:43Z-
Data de envio: dc.date.issued2009-
Data de envio: dc.date.issued2009-08-03-
Data de envio: dc.date.issued2013-03-12-
Data de envio: dc.date.issued2013-03-12-
Data de envio: dc.date.issued2013-03-12-
Fonte completa do material: dc.identifierhttp://objetoseducacionais2.mec.gov.br/handle/mec/22597-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/492524-
Descrição: dc.descriptionThe probability mass function of a pair of discrete random variables (X,Y) is the function f(x,y)=P(X=x,Y=y). The conditional mass function of Y given X is the function f(y|x)=P(Y=y|X=x). Thus the mass function (left-hand plot) computes probabilities of intersections, while the conditional mass function (right-hand plot) computes conditional probabilities. For each x value, the slice through the conditional mass function at that value gives the distribution of Y when X assumes the value x. The mean of this distribution is the conditional expectation of Y given X=x, E[Y|X=x]. The weighted average of the conditional expectations, with the weights given by the probability that X=x, is the expected value of Y.You can reverse the roles of X and Y to obtain the conditional mass function of X given Y and the conditional expectation of X given Y=y-
Descrição: dc.descriptionEducação Superior::Ciências Exatas e da Terra::Matemática-
Idioma: dc.languageen-
Publicador: dc.publisherWolfram Demonstration Project-
Relação: dc.relationAConditionalProbabilityMassFunction.nbp-
Direitos: dc.rightsDemonstration freeware using MathematicaPlayer-
???dc.source???: dc.sourcehttp://demonstrations.wolfram.com/AConditionalProbabilityMassFunction/-
Palavras-chave: dc.subjectProbability-
Palavras-chave: dc.subjectEducação Superior::Ciências Exatas e da Terra::Matemática::Matemática Aplicada-
Título: dc.titleA conditional probability mass function-
???dc.description2???: dc.description2Studying how a mass funcion of two variables behaves according to its function-
???dc.description3???: dc.description3This demonstration needs the "MathematicaPlayer.exe" to run. Find it in http://objetoseducacionais2.mec.gov.br/handle/mec/4737-
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