生日在同一天问题的调研分析  

The Research and Analysis of Birthday on The Same Day Problems

作　　者：徐付霞[1] 李振东[2] 

机构地区：[1]天津工业大学理学院,天津300387 [2]唐山学院基础教学部,河北唐山063000

出　　处：《数学的实践与认识》2015年第16期127-131,共5页Mathematics in Practice and Theory

摘　　要：统计调查了5个年级34个班共1484名大学生的生日,用方差分析方法检验了生日在一年365天中的分布是不均匀的,10月份左右出生的人数较多,7月份出生的人数最少,这使得一个班级中至少有两个人生日在同一天的概率增加.解释了现实生活的偶然现象中所蕴含的必然规律.This paper sums up 1484 university students birthday data of 34 classes of 5 years, show that ones birthday distribution is not eqully likely in 365 days of a year by analysis of variance. The numbers people is born in the vicinity of October is greater than others, and the numbers born in july is minimum. This increase the probability of same birthday about more than two people at a class. We explain the necessary law in the accident in our reality livelihood.

关 键 词：生日问题 概率分布 随机事件 方差分析 

分 类 号：G634.6[文化科学—教育学]