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删除8字节 、 2020年10月17日 (六) 12:56
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=== Definition of long-tailed distribution 长尾分布的定义 ===
 
=== Definition of long-tailed distribution 长尾分布的定义 ===
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The distribution of a [[random variable]] ''X'' with [[cumulative distribution function|distribution function]] ''F'' is said to have a long right tail if for all ''t'' > 0,
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The distribution of a [[random variable]] ''X'' with [[cumulative distribution function|distribution function]] ''F'' is said to have a long right tail if for all ''t'' > 0,
    
The distribution of a random variable X with distribution function F is said to have a long right tail[1] if for all t > 0,
 
The distribution of a random variable X with distribution function F is said to have a long right tail[1] if for all t > 0,
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<math>
 
<math>
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or equivalently
 
or equivalently
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