摘要
王梓坤院士在 [2 ]中提出 :从 1,2 ,… ,10共 10个数字中任取一个 ,假定每个数字都以 1/ 10的概率被取中 ,取后还原 ,先后取出 7个数字 ,… ,求总和A5为 2 0的概率 ,本文将它发展成一个定理 ,在这类问题中任意取用。
Mr.Wang Zhikun,an academician of Chinese Academy of Sciences,pointed out a problem of maths in the .That is to choose one number randomly from the ten numbers of one to ten,supposing every number could be picked out by a probability of 1/10.Then mix the ten numbers and pick out one number again.Do it seven times,and seek the probability of A 5 which is equal to twenty.This article devlops the above problem into a theorem which can be applied to similar problems.Moreover,detail explantions are given to some designation problems in this article.
出处
《贵州师范大学学报（自然科学版）》
CAS
2002年第2期18-20,共3页
Journal of Guizhou Normal University：Natural Sciences
关键词
概率
指派问题
组合数
整数解
probability
combinatorial number
designation
integer solution
