词汇 | standard deviation |
释义 | standard deviation noun [ C ] mathematics specialized uk/ˌstæn.dəd ˌdiː.viˈeɪ.ʃən/ us/ˌstæn.dɚd ˌdiː.viˈeɪ.ʃən/ 标准偏差 a number that shows the amount by which members of a group are different from the mean (= average) value for the group 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。
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