卡方检验法在检验学生成绩中的应用.doc

检验法在检验学生成绩中的应用

摘 要

在对学生成绩分析时，采用数理统计中的 检验法可以方便有效

地得出相关数据。以某初中全体学生的数学成绩为总体，采用卡方拟

合检验法来检验初三学生的数学成绩近似的服从正态分布,以及检验其

相应的方差是否正确，完成对考试成绩客观准确的分析,充分了解学生

的学习情况。利用卡方分布检验中重要应用列联表独立检验对学生数

学成绩与学校对其所培养的重视程度的关系进行研究，这可以帮助我

In the analysis of student achievement, using the test statistics can be conveniently

and effectively get the relevant data. A junior high school student with math scores for

overall, using the chi-squared fit to test the students mathematical results approximately

obey the normal distribution, and test the corresponding variance is correct, complete

analysis of test scores of objective and accurate, the full understanding of students

learning. Using the card application distribution test of contingency table test for students

to study mathematics achievement and school emphasis on its culture, which can help us

to discover what happens in education and teaching, to provide an effective guarantee for

the monitoring and evaluation of the quality of education.

1.1 中值

1.2 平均值

1.4 区域

1.5 模式