英语词汇“coefficient of variation”的翻译、意思、用法、释义-英汉经管词典

单词	coefficient of variation
释义	coefficient of variation A measure of the importance of variability relative to average size. Size is measured by the mean, and variability is measured by the standard deviation, which is the square root of the mean square of deviations from the mean. Thus if there are N observations, x_i for i = 1, 2,…, N, the mean is 0198607679.coeff-of-variation.1.jpg the standard deviation is 0198607679.coeff-of-variation.2.jpg and the coefficient of variation is 0198607679.coeff-of-variation.3.jpg While the coefficient of variation is a convenient measure for variables such as consumption or gross investment, which are always positive, it is not convenient in dealing with variables such as net investment in stocks and work in progress, which can change sign and may thus have μ small or negative.
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