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统计图是统计学的基础,最基本的统计方法也是主要包括条形图、扇形图和折线图,它们是统计结果的直观体现。在近几年的中考试题中,统计图出现的频率越来越高,很多题目往往把几种统计图组合在一起考查同学们的识图能力。现举几例予以说明,供大家参考。一、条形图与扇形图相结合例1某校学生会准备调查初中2012届毕业生每天(除课间操外)的课外锻炼时间。
Statistical charts are the basis of statistics. The most basic statistical methods are mainly bar charts, sector charts and line charts, which are the visual representations of statistical results. In recent years, senior high school entrance examination questions, statistics appear more frequently, many questions often combine several charts to test students’ ability to recognize the map. Give a few examples to illustrate, for your reference. First, the combination of bar charts and fan diagram Example 1 students will be prepared to investigate a junior high school graduates in 2012 (except classes) outside the training hours.