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harmonic mean

/hɑːˈmɒnɪk miːn/

翻译: 一种平均值,通过将观测值的个数除以各观测值倒数的和来计算,常用于速率和比率的平均。

1 个条目

phrase

/hɑːˈmɒnɪk miːn/C1formaltechnical
  • zh一种平均值,通过将观测值的个数除以各观测值倒数的和来计算,常用于速率和比率的平均。

A type of average calculated by dividing the number of observations by the sum of the reciprocals of each observation, often used for rates and ratios.

  1. Mathematical averageC1formal

    A type of average calculated as the reciprocal of the arithmetic mean of the reciprocals of a set of numbers.

    zh调和平均数

    • The harmonic mean is often used in finance to calculate average rates.
    • For the numbers 2, 4, and 8, the harmonic mean is approximately 3.43.
    • The harmonic mean is always less than or equal to the geometric mean.