单词 | index number |
释义 | index number [`in´deks ´nǝm·bǝr] STATISTICS A number indicating change in magnitude, as of cost or of volume of production, as compared with the magnitude at a specified time, usually taken as 100; for example, if production volume in 1970 was two times as much as the volume in 1950 (taken as 100), its index number is 200. |
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