10 AL報到區 [復制鏈接]

引用第939樓路飛於2010-04-16 21:44發表的“”:
所以話如果retake撞正果年玩野... 真係又sai一年

我都係retake...仲有好友都係?

你地d科好玩野丫?........我科econ就一年比一年淺.....

引用第945樓ＳａＨＡ於2010-04-16 22:02發表的“”:
我都係retake...仲有好友都係?
你地d科好玩野丫?........我科econ就一年比一年淺.....

我都係retake..但我d科好玩野
最後phy啦..唔好玩野啊....

引用第944樓星夜鈴於2010-04-16 22:01發表的“”:
第四條係 exhaustive event
睇睇下先有頭緒....好彩撞岩左

full version:
Let A and B be two exhaustive events of a certain sample space.
Denote P(B) = b and P(A ︵B) = c, where 0<b<1 and 0<c<1
(a) Express P(A) in terms of b and c
(b) Suppose P(A l B) =1/2 and P(B l A) =2/3
    (i) Find the values of b and c
    (ii)Are the events A and B independent? Explain your answer.

引用第945樓ＳａＨＡ於2010-04-16 22:02發表的“”:
我都係retake...仲有好友都係?
你地d科好玩野丫?........我科econ就一年比一年淺.....

唉ECON

SEC B C 做得好差 C都唔知有冇

引用第944樓星夜鈴於2010-04-16 22:01發表的“”:
第四條係 exhaustive event
睇睇下先有頭緒....好彩撞岩左

exhaustive event
check番先知係咩
ms 有無教呢d term

引用第947樓星夜鈴於2010-04-16 22:06發表的“”:
full version:
Let A and B be two exhaustive events of a certain sample space.
Denote P(B) = b and P(A ︵B) = c, where 0<b<1 and 0<c<1
.......

thx
知道左呢題唔難

引用第947樓星夜鈴於2010-04-16 22:06發表的“”:
full version:
Let A and B be two exhaustive events of a certain sample space.
Denote P(B) = b and P(A ︵B) = c, where 0<b<1 and 0<c<1
.......

你撞都撞到好勁   我係見過依個字一眼..比佢中文翻譯吸引佐先望多2眼

引用第948樓路飛於2010-04-16 22:06發表的“”:
唉ECON [表情]
SEC B C 做得好差 C都唔知有冇

其實micro都似易實難,應該個分都唔會特別高

但macro除左last個條....真係淺左d

引用第949樓fatman於2010-04-16 22:07發表的“”:
exhaustive event
check番先知係咩 [表情]
ms 有無教呢d term [表情]

如果有教/pp出現過d人就唔會唔識了

入到大學我派米,千金散盡

引用第946樓hyp於2010-04-16 22:04發表的“”:
我都係retake..但我d科好玩野 [表情]
最後phy啦..唔好玩野啊.... [表情]

咁玩野既話都一齊死既...唔洗太擔心

引用第952樓ＳａＨＡ於2010-04-16 22:08發表的“”:
其實micro都似易實難,應該個分都唔會特別高
但macro除左last個條....真係淺左d

我比佢成堆字嚇窒佐 勁亂下搵極定搵唔到n(poor) /n(rich)

結果空佐sosad...

知唔知如果mc 25/30 & 26/30

section b + c   2份各拎30/80 有冇c?

引用第954樓king6a於2010-04-16 22:08發表的“”:
入到大學我派米,千金散盡 [表情]

我都派

引用第951樓路飛於2010-04-16 22:08發表的“”:
你撞都撞到好勁 [表情]   我係見過依個字一眼..比佢中文翻譯吸引佐先望多2眼 [表情]

因為P(A︵B)= P(A) + P(B) - P(A︶B)
        c   = P(A) + b - P(A︶B)

又因為c 唔= 0... 所以就撞 P(A︶B) = 1...

引用第956樓路飛於2010-04-16 22:11發表的“”:
我比佢成堆字嚇窒佐 勁亂下搵極定搵唔到n(poor) /n(rich)
.......

我都係....而且時時無多有d急....

其實應該係c既附近,不過咁估法無乜意思...因為點俾分太難捉摸了

你起碼mc都唔錯先啦!