成才之路·人教A版数学选修课件.ppt

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1、成才之路·数学路漫漫其修远兮吾将上下而求索人教A版·选修2-3Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.统计案例第三章Evaluationonly.CreatedwithAspose.S

2、lidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.3．2独立性检验的基本思想及其初步应用第三章Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-

3、2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.典例探究学案2巩固提高学案3自主预习学案1备选练习4Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAsp

4、ose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.自主预习学案Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposeP

5、tyLtd.学习目标解读通过对案例的探究，了解独立性检验(只要求2×2列联表)的基本思想、方法及初步应用．Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.重点：理解独立性检验的基本思想及实施步

6、骤．难点：独立性检验基本思想的理解及应用．Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.思维导航日常生活及生产、科研中，经常需要考虑某个量的变化是否由某种因素引起，与这种因素的相关程度有多大

7、？怎样判断呢？例如：某校对高二期末考试中，学生的性格与考试时心情紧张的情况作调查的结果是：性格内向的426人中有332人考前紧张，性格外向的594人中有213人考前紧张．试问考前紧张与性格类型有关系吗？你想用什么统计量来支持你的观点？独立性检验的基本思想Evaluationonly.CreatedwithAspose.Slidesfor.NET3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.Evaluationonly.CreatedwithAspose.Slidesfor.NET

8、3.5ClientProfile5.2.0.0.Copyright2004-2011AsposePtyLtd.新知导学1．分类变量变量的不同“值”表示个体所属的__