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第888行： + − 指数分布的速率参数 α。等价，如果 y 是指数分布的速率 α，则+ + +
→Feller–Pareto distribution费勒-帕累托分布
Feller<ref name=jkb94/><ref name=feller/> defines a Pareto variable by transformation ''U'' = ''Y''<sup>−1</sup> − 1 of a [[beta distribution|beta random variable]] ''Y'', whose probability density function is
Feller<ref name=jkb94/><ref name=feller/> defines a Pareto variable by transformation ''U'' = ''Y''<sup>−1</sup> − 1 of a [[beta distribution|beta random variable]] ''Y'', whose probability density function is
费勒Feller<ref name=jkb94/><ref name=Feller/>通过转换“U”=“Y”<sup>-1</sup>–“Y”定义一个Pareto变量，其概率密度函数为
is exponentially distributed with rate parameter α. Equivalently, if Y is exponentially distributed with rate α, then
is exponentially distributed with rate parameter α. Equivalently, if Y is exponentially distributed with rate α, then
与速率参数α呈指数分布。等价地，如果Y与速率α呈指数分布，则