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Reference.org
Noncentral chi distribution
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<p>In <a href="/facts/Probability_theory/mFBn51rE">probability theory</a> and <a href="/facts/Statistics/DNPsKGYU">statistics</a>, the noncentral chi distribution is a <a href="/facts/Noncentral_distribution/uWgoRYTm">noncentral generalization</a> of the <a href="/facts/Chi_distribution/bV4MEanU">chi distribution</a>. It is also known as the generalized Rayleigh distribution. </p>