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本文提出统计分组的两种情况，并运用模糊数学中最大隶属度原则．阀值原则及模糊聚类方法对两种情况进行了探讨。运用新方法克服了传统分组方法中的不足，提高了统计分组的准确性．最后对当前所采用的F—统计量提出了异议，并提出改进方法．
This paper presents two cases of statistical grouping and applies the principle of maximum membership in fuzzy mathematics. Threshold principle and fuzzy clustering method are discussed in two cases. The new method overcomes the shortcomings of the traditional grouping method and improves the accuracy of the statistical grouping. Finally, the disagreement is raised about the current F-statistic and the improvement method is put forward.