词汇 | standard-deviation |
释义 | standard deviation noun[ C ] mathematics specializeduk /ˌstæn.dəd ˌdiː.viˈeɪ.ʃən/ us /ˌstæn.dɚd ˌdiː.viˈeɪ.ʃən/ a number that shows the amount by which members of a group are different from the mean(= average) value for the group: 标准偏差 Price dispersion in the region is measured by the standard deviation of prices for a product across the six economies.该地区的价格差异是通过一种产品在6个经济体的价格标准差来衡量的。 He would calculate the standard deviation of players' won-lost records as a check against his computer-generated projections. All of the children scored within one-half standard deviation of the mean on the test. Table 2 presents the means and standard deviations for frequency and duration. A machine is designed to produce rods 2 cm long with a standard deviation of 0.02cm. Statistics actuarial actuary analysis of covariance background variable canonical correlation categorical variable correction factor correlation coefficient covariance matrix covariate cross-sectional entropy infant mortality rate interpoint interquartile range multigroup non-statistical pollster statistician stochastic standard deviation | Business Englishstandard deviation noun[ C or U ] GRAPHS & CHARTS, MEASURESukus a measurement of the degree to which each number in a set of numbers is different from the average: standard deviation from sthA fund's performance is measured using its standard deviation from the average profits of all the funds in its category. |
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