在抽查某产品尺寸过程中，将其尺寸分成若干组，［a，b］是其中一组，已知该组的频率为m，该组上的直方图的高为h，则｜a－b｜等于 ( )_刷题宝

题干

在抽查某产品尺寸过程中，将其尺寸分成若干组，［a，b］是其中一组，已知该组的频率为m，该组上的直方图的高为h，则｜a－b｜等于 ( )

A：mh

B：

C：

D：m+h

上一题下一题 0.0难度选择题更新时间:2018-09-24 05:08:43

答案(点此获取答案解析）

C

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