如下数据:8,14,15,43,46,47,47,50,57,62,89,100。按照等距分组法,组数为4,则分组的分点为:()。 A.8~31,32~55,56~79,80~100B.8~15,43~47,47~57,62~100C.8~43,46~47,50~62,89~100D.8~15,43~47,50~62,89~100正确答案:A
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