= Exchangeable random variables
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= Exchangeability
{synonym}
= Exchangeable
{synonym}
A family of <random variables> is <exchangeable random variables>[exchangeable] if its <joint probability distribution> is unchanged by finite <permutation>[permutations] of its coordinates. <Independent and identically distributed random variables> are <exchangeable random variables>[exchangeable], but <exchangeable random variables>[exchangeable] <random variables> need not be <independent random variables>.
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