Re: [作業] about機率...

[joehuang92 (喬喬)]

※ 引述《et220870 (維尼)》之銘言：
: ㄜ...不知道大一有誰有買書啊....^^"
: 不曉得方不方便麻煩把這次作業的題目po一下....> <"....
: by正在努力搜尋二手書中的人....

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?


就不翻譯囉？剩下兩小題書上沒有，反正老師有說明過了。

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推 TARK:大喬我愛你
推 hakusin: 我愛你     大喬
推 et220870:我愛你     大喬    也愛志玲演的小喬...>///<
推 annunaki:後面兩題會不會太搞笑......不給機率測度就問機率......
→ annunaki:雖然說一般實數線都定lebesgue measure
→ hcsoso:這兩題似乎用說明的就可以了:]