本文试通过对北师大版、人教A版以及人教B版选修1-2中统计案例部分的比较研究，一定程度反映出整个三版教材“统计与概率”内容的不同于相似之处。得出各个版本的优点和缺点，以及适合人群。文章从内容的选择和组织、知识点的叙述方法及语言表达和例题与习题三个大方面入手进行比较。在内容的选择和组织部分，本文又细分为了目录、版面设置、知识内容的选择三个方面进行进一步比较。通过上述的比较研究，得出三个版本在内容上，语言表达，和学生认知的接受程度上的各自的优点以及缺点。为根据学生具体情况选择适当的教材来辅助教学。

It’s trying to contrast and study the statistics in the 1-2 in the three prevailing textbooks to reflect the whole content condition.And finally, to show the advantages and short comes of each textbook. In the essay, we focus on choice an organization of the contents, the way of the knowledge narrated and the examples and exercises in textbook .In the choice an organization of the contents, we divide it into choice an organization of the contents, the layout of the format and the choice of the content of the knowledge.By the contrast and study of the above-mentioned aspects, we hope to come to the results of the advantages and short comes of the contents, language expression and the levels that what the students' cognize accept.Based on this, we hope to choose textbook to assist the teaching, according to the specific condition of the students.