英语词汇“kurtosis”的翻译、意思、用法、释义-英汉经管词典

单词	kurtosis
释义	kurtosis A measure of how ‘humped’ a frequency distribution is, compared to a normal distribution with the same mean and variance. The kurtosis of a variable x with mean μ can be measured by K = E(x - μ)⁴ /[E(x - μ)² ]² ; for a normal distribution K = 3. A distribution with K > 3 is slim and long-tailed, with more weight in its centre and extremes and less at medium distances from the mean than a normal distribution. A distribution with K < 3 is fat and short-tailed, with less weight in its centre and extremes and more at medium distances from the mean than a normal distribution.
随便看	rediscount redistribution of income redistributive tax red-lining reduced form reducing balance depreciation redundancy reform reform, trade refund, tax refusal to supply regime, exchange rate regional aid regional policy regional trade agreements registered unemployed register, share Registrar of Companies regression regressive tax regulation regulatory agency regulatory capture reinsurance relationship banking

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