采用文献资料法、数理统计法和比较法，对中国与世界优秀女子七项全能运动员成绩进行对比分析。
By using the method of documentary, statistics and comparison, this paper analyzes the achievement of heptathlon of domestic and international Women elites.
采用文献法、调查法、数理统计法、分析与综合法，对我国男子链球成绩滑坡的原因进行了研究。
Analysis was made on the reasons of the declining of Chinese men's hammer throw performance with methods of literature study, investigation and mathematical statistics.
本文首先讨论了教育实习成绩评定中存在的一些问题，然后应用多元统计中的判别分析与最优分割方法，结合实例给出了进行优化的方法与途径。
In this paper, by using the principal component analysis and optimal sorting method, we get a solution for the assessment of educational practise and then give the calculation of a example.
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