作者joehuang92 (乔乔)
看板b95902HW
标题Re: [作业] about机率...
时间Sun Mar 18 19:46:33 2007
※ 引述《et220870 (维尼)》之铭言：
: ㄜ...不知道大一有谁有买书啊....^^"
: 不晓得方不方便麻烦把这次作业的题目po一下....> <"....
: by正在努力搜寻二手书中的人....
p34.
8.Let A1, A2......An be n events. Show that if
P(A1)=P(A2)=......=P(An)=1
then P(A1A2A3...An)=1.
9.(a)Prove that ∩[n=1~∞](1/2-1/2n,1/2+1/2n)={1/2}.
(b)Using part(a), show that the probability of selecting 1/2 in a random se-
lection of a point from (0,1) is 0.
10.A point is selected at random from the interval(0,1). What is the probabil-
ity that it is rational? What is the probability that it is irrational?
就不翻译罗？剩下两小题书上没有，反正老师有说明过了。
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1F：推 TARK:大乔我爱你 03/18 20:51
2F：推 hakusin: 我爱你 大乔 03/18 21:37
3F：推 et220870:我爱你 大乔 也爱志玲演的小乔...>///< 03/18 23:38
4F：推 annunaki:後面两题会不会太搞笑......不给机率测度就问机率...... 03/19 04:30
5F：→ annunaki:虽然说一般实数线都定lebesgue measure 03/19 04:30
6F：→ hcsoso:这两题似乎用说明的就可以了:] 03/20 18:42