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kurtosis

美[kɜː'toʊsɪs] 英[kɜː'təʊsɪs]

n. 曲线的峰态；峭度

名词复数：kurtoses

用作名词(n.)

When we measure the kurtosis of a distribution, we are measuring its peakedness.度量一条频率分布曲线的尖削度就是度量其顶部的峰态。
As to skewness, it is not as important as kurtosis in affecting subadditivity.模拟结果显示，只有在非常高的峰态下风险值是违反次加性，而目前常见的财务资料的分配并不具有如此高的峰态。

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