由于图表的直观性,利用图表分析数据乃是统计方法中的首选方法.与统计有关的图表很多,对各种图表,不但要会画,更要会识别和利用;对图表中的各个统计量,不但要会求,还要理解其所反映出的样本与总体的有效的特征信息,为作出合理的统计推断服务.因此,能够认识图表、用图表说话是学好统计知识的基本功。 Due to the intuitiveness of the graph, the use of graphs to analyze data is the preferred method of statistical methods. There are many diagrams related to statistics. Not only will the various graphs be drawn, but they will also be identified and used. Each statistic in the graph Not only will we have to seek, we must also understand the sample and the overall effective characteristics of the information it reflects, in order to make reasonable statistical inference services. Therefore, being able to understand charts and speak with charts is a basic skill for learning statistical knowledge.