我有啲懷疑老師唔識英文
Why13579
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咁你嚟答喇
Copy 漏咗答案：
(a) 1/4
(b) 1/3
(c) 1/2
(d) 1/2
我上面咪答咗囉
我send信息時你未po,我自膠
點解識b?
我#6咪解咗囉 唔撚明就驗腦啦柒頭皮
(Elder, Younger)
S = {(B, B) (B, G) (G, B) (G, G)}
If we know one of the two must be a boy, then we are left with
S = {(B, B) (B, G) (G, B)}
Event A: Both children are boys
Thus, P(A) = (1/3)
利申：數學好差，求指教
S = {(B, B) (B, G) (G, B) (G, G)}
If we know one of the two must be a boy, then we are left with
S = {(B, B) (B, G) (G, B)}
Event A: Both children are boys
Thus, P(A) = (1/3)
利申：數學好差，求指教
反而好奇(d)個assumptions唔係同(b)一樣咩？你一樣知其中一個係boy
你到given joe is boy,點解G,B 會 possible?
你重未答到我
你重未答到我
唔係one of them is boy
而係joe is boy
而係joe is boy
而家d後生仔
少少事就係到挑戰權威
莫講話依題錯
就算成份卷錯都唔該你靜靜地吞咗佢
除非你唔想畢業啦
少少事就係到挑戰權威
莫講話依題錯
就算成份卷錯都唔該你靜靜地吞咗佢
除非你唔想畢業啦
Joe can be the younger or older brother as it is not specified whether Joe is the older or younger sibling.
Thus (Joe, Younger Sister) and (Older Sister, Joe) are both possible outcomes
Thus (Joe, Younger Sister) and (Older Sister, Joe) are both possible outcomes
then (joe, younger brother) and (older brother, joe) are also possible outcomes
Joe咪個個B囉
我當初以為係（joe, joe’s sibling), 點知係（older,younger)
You are asking why (Older sister, Joe) is not a possible outcome, and I am answering why that is in fact, a possible outcome.
I never said (Joe, Younger brother) and/or (Older brother, Joe) were not possible outcomes?
I never said (Joe, Younger brother) and/or (Older brother, Joe) were not possible outcomes?
then there will be four total possible outcomes, where two of the possibilities, joe’s sibling will be a brother
考慮 {B, G}^2 果陣, 第一個Coordinate係呀Joe, 第二個Coordinate係佢個siblings喎
佢個condition唔係"已知其中一個係男", 如果係咁你就計岩
佢個condition唔係"已知其中一個係男", 如果係咁你就計岩
不如你講下嗰兩個possibility係咩
(older brother, joe)(joe, younger brother)
ChatGPT做數學好差, 唔好理佢 
咁你咪睇吓佢邊忽唔合理囉
唔同
s = {BB,BG.GB,GG}
d) 只要其中一個係仔就得
所以個s係包BB,BG,GB
b) 寫明其中一個叫Joe
假設 label 入面左邊條友叫Joe
所以係包BB,BG only 唔包GB
c)個elder 係Boy其實同 講Joe 係boy 都係一樣
等你個possible outcome 得返BB同BG
唔可以accept GB
我理解係咁
s = {BB,BG.GB,GG}
d) 只要其中一個係仔就得
所以個s係包BB,BG,GB
b) 寫明其中一個叫Joe
假設 label 入面左邊條友叫Joe
所以係包BB,BG only 唔包GB
c)個elder 係Boy其實同 講Joe 係boy 都係一樣
等你個possible outcome 得返BB同BG
唔可以accept GB
我理解係咁
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