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词汇 kurtosis
释义

Definition of kurtosis in English:

kurtosis

noun kəːˈtəʊsɪskərˈtōsəs
mass nounStatistics
  • The sharpness of the peak of a frequency-distribution curve.

    〔统计〕峰度

    Example sentencesExamples
    • The kurtosis of the movement distributions was also estimated for each species.
    • Sample means, trimmed means, medians, standard deviations, minimums, maximums, skewness and kurtosis are reported.
    • Data were tested for normality using normal probability plots and tests of skewness and kurtosis.
    • Skewness was not detected in these distributions, but kurtosis was in two of them.
    • In both models, kurtosis was the primary reason for rejection of normality.

Origin

Early 20th century: from Greek kurtōsis 'a bulging', from kurtos 'bulging, convex'.

Definition of kurtosis in US English:

kurtosis

nounkərˈtōsəs
Statistics
  • The sharpness of the peak of a frequency-distribution curve.

    〔统计〕峰度

    Example sentencesExamples
    • The kurtosis of the movement distributions was also estimated for each species.
    • In both models, kurtosis was the primary reason for rejection of normality.
    • Sample means, trimmed means, medians, standard deviations, minimums, maximums, skewness and kurtosis are reported.
    • Data were tested for normality using normal probability plots and tests of skewness and kurtosis.
    • Skewness was not detected in these distributions, but kurtosis was in two of them.

Origin

Early 20th century: from Greek kurtōsis ‘a bulging’, from kurtos ‘bulging, convex’.

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