通过对试卷指标的介绍，说明了计算平均数在试卷分析过程中的重要作用。
The important role of calculating average during the course of test paper analysis is explored in this article.
但因累计资产支出加权平均数的计算过程复杂，手工计算时操作性不强；
But it is very complicated to calculate the weighted average value of accumulated assets expenditure for manual calculation.
阐述了综合指数、平均数指数和平均指标指数的编制方法及三种指数在编制过程中应注意的问题，并配以实例进行计算和分析。
This paper discusses the computation of the mean indices under fuzzy conditions, and develops a technique to deal with this problem by fuzzy extension principle.
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