关于考试成绩评估的一种思路

A Theory about Examination Result Evaluation

利用统计抽样方法绘制学生成绩直方图,采用极大似然估计法对学生考试成绩正态分布的参数进行估计,并运用χ2检验法检验该样本正态分布模型与实际情况的拟合程度;利用正态分布的性质和分布假设检验,对一次真实的考试成绩进行了检验分析,并利用Visual Basic语言编程实现了计算机软件的自动分析,得到了考试成绩评估的一般方法和结论。

Draw the histogram of students ＇ results using sampling statistics,using maximum likelihood estimation to estimate the normal distribution of students＇ results, and use χ^2 inspection method to inspect the fitting degree of this normal distribution model to the actual situation. Using the characteristics of normal distribution and distributional assumption to test and analyze a real examination＇s results. And by using Visual Basic programming we managed to make the computer software to analyze automatically. Thus we attained the normal method and conclusion of the examination result evaluatlon.