推 yease:聯集 03/19 20:21
推 annunaki:正常記號下，那是交集...... 03/19 20:37
推 yease:對 ... 說錯了 感謝指正^^ 03/19 20:41
推 et220870:多謝~~^^ 03/20 02:03
※ 引述《joehuang92 (喬喬)》之銘言：
: ※ 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.
ㄜ...A1A2A3...AN是A1^^A2^^A3....^^An的意思嗎？
: 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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