作者t0444564 (艾利欧)
看板NTU-Exam
标题[试题] 99下 陈鹏文 机率导论 期中考
时间Fri Mar 18 19:31:16 2011
课程名称︰机率导论
课程性质︰数学系必修
课程教师︰陈鹏文
开课学院：理学院
开课系所︰数学系
考试日期︰2010年03月10日
考试时限：30分钟
是否需发放奖励金：是
试题 :
The simplication of the factorials is not necessary.
1. (7 points) Detemine the number of vectors(x1 ,x2 ,...,x9) such that
(a) each xi is a nonnegative integer,
(b) exactly 3 of the xi are equal to 0,
(c) sigma (i=1 to 9) xi ≦20.
2. (6 points) Four players are dealt a hand of 26 playing cards from two 52
card decks. A hand is said to have a void in a suit if it contains no cards
in that suit. What is the probability of being dealt a hand which is void in
at least one suit?
3. (7 points) If 5 married couples are arranged in a row, find the
probability that no husband sits next to his wife?
--
※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 140.112.251.78
※ 编辑: t0444564 来自: 140.112.252.31 (11/19 05:34)