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题目来源1 : 2022年12月GRE机经
正确率：54%
难度：5
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The graphs show the cumulative relative frequency for the values in data set A and the values in data set B, where the cumulative relative frequency of each value v is the sum of the relative frequencies of the values less than or equal to v. If x percent of the values in A are less thar or equal to 20 and y percent of the values in B are less than or equal to 20, which of the following is the best estimate of x-y?
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5.1.2 条形图
5.1.2 条形图
以上解析由 考满分老师提供。
