1研究背景统计是研究如何合理收集、整理、分析数据的学科,统计的基础知识已经成为每一个公民都应当具备的基本素质,统计内容在数学课程中也得到越来越高的重视.《义务教育数学课程标准(2011年版)》将“数据分析观念”作为数学课程中学生发展的重要目标之一,明确数据分析是统计的核心[1].很多国家都将统计内容列为初中数学课程的重要组成部分[2]. 1 Research Background Statistics is a discipline that studies how to collect, collate and analyze data reasonably. The basic knowledge of statistics has become the basic quality that every citizen should possess. Statistics have also been given more and more attention in mathematics courses. Education Mathematics Curriculum Standard (2011 Edition) “to” data analysis concept "as one of the important goals of students in mathematics curriculum development, a clear data analysis is the core of statistics [1] .In many countries will be included in the statistics as a junior high school mathematics curriculum An important part of [2].