c*********0
发帖数: 757 | 1 1) Prove or disprove: if two events are mutually exclusive, then the two
events are independent.
2)a coin is tossed a sequence of times, what is he probability that the
first head will occur after the fifth toss, given that it has not occurred
in the first two tosses
3) prove that for any three events ,A,B,C, each having positive probability
and with the property that P(A n B) > 0, THEN : P(A n B n C)=P(A)P(B I A)P(C
l A n B) | a**e
发帖数: 5794 | 2 1.
exclusive: P(A\cap B)=0
independent: P(A)=P(A|B)=P(A\cap B)/P(B)
probability
(C
【在 c*********0 的大作中提到】
: 1) Prove or disprove: if two events are mutually exclusive, then the two
: events are independent.
: 2)a coin is tossed a sequence of times, what is he probability that the
: first head will occur after the fifth toss, given that it has not occurred
: in the first two tosses
: 3) prove that for any three events ,A,B,C, each having positive probability
: and with the property that P(A n B) > 0, THEN : P(A n B n C)=P(A)P(B I A)P(C
: l A n B)
| r*****r
发帖数: 630 | 3 kidding?
probability
(C
【在 c*********0 的大作中提到】
: 1) Prove or disprove: if two events are mutually exclusive, then the two
: events are independent.
: 2)a coin is tossed a sequence of times, what is he probability that the
: first head will occur after the fifth toss, given that it has not occurred
: in the first two tosses
: 3) prove that for any three events ,A,B,C, each having positive probability
: and with the property that P(A n B) > 0, THEN : P(A n B n C)=P(A)P(B I A)P(C
: l A n B)
| L******k
发帖数: 33825 | 4 初学者 不成吗？
偶暑假 也要take 概率 本科那些东西 对这版上的 朋友来说 哦都市 玩笑的东西了！
哈哈！
【在 r*****r 的大作中提到】
: kidding?
:
: probability
: (C
| c*********0
发帖数: 757 | 5
大牛-不屑啊，你做啊。
【在 r*****r 的大作中提到】
: kidding?
:
: probability
: (C
| c*********0
发帖数: 757 | 6
P（A）=P(A|B) is the proved fact, can not be used
【在 a**e 的大作中提到】
: 1.
: exclusive: P(A\cap B)=0
: independent: P(A)=P(A|B)=P(A\cap B)/P(B)
:
: probability
: (C
| L******k
发帖数: 33825 | 7 lol!!
【在 c*********0 的大作中提到】
:
: P（A）=P(A|B) is the proved fact, can not be used
| c*********0
发帖数: 757 | |
| L******k
发帖数: 33825 | 9 做出来没有？！！
偶是不会啊！
暑假 才学 概率！
帮不了你了！
【在 c*********0 的大作中提到】
: ......math!!! so sad...
| n******t
发帖数: 4406 | 10 大牛如果被你激一下就上当了就不叫大牛了。
【在 c*********0 的大作中提到】
: ......math!!! so sad...
| L******k
发帖数: 33825 | 11 牛年大牛 犇！！
【在 n******t 的大作中提到】
: 大牛如果被你激一下就上当了就不叫大牛了。
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