| 单词 | mean deviation |
| 释义 | > as lemmasmean deviation mean deviation n. Statistics (more fully mean absolute deviation) the mean of the absolute deviations of a set of data values from some fixed central value (usually the mean). ΚΠ 1858 W. Greener Gunnery in 1858 375 The mean deviation on the target from the centre of the group of 10 hits being only ·85 of a foot at 500 yards' range. 1911 G. U. Yule Introd. Theory Statistics viii. 134 There are three such measures in common use—the standard deviation, the mean deviation, and the quartile deviation or semi-interquartile range. 1954 Appl. Statistics 3 100 Almost invariably the mean absolute deviation from an expected value is ‘invented’ as a measure of dispersion by at least one member of the group. 1999 Amer. Jrnl. Ophthalmol. 127 436 Univariate linear regression of mean deviation was undertaken for each eye that had field data from at least five tests. < as lemmas |
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