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频率分布反映了样本数据(或一组数据)落在各个小范围内的比的大小。当今社会是一个信息社会,每个人必须学会收集信息和数据,并且利用统计的方法,整理处理数据,利用频率分布直方图综合分析,就能得出正确的结论,所以学好数据的收集与处理是非常有用的。由于这方面的知识与现实社会联系非常紧密,中考题中频频出现。下面以中考试题为例介绍频率分布直方图在中考中的考查。
The frequency distribution reflects the size of the sample data (or a set of data) falling within each small range. Today’s society is an information society, each person must learn to collect information and data, and use statistical methods to organize data, the use of frequency distribution histogram synthesis analysis, can draw the correct conclusion, so learn data collection and processing is Very useful. Because of this knowledge and social reality is very close, frequent appearances in the exam. The following exam questions in the middle of the exam to introduce the frequency distribution histogram in the test.