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教育王國 討論區 小一選校 Help to formulate the probabilty of a boy can draw i ...
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Help to formulate the probabilty of a boy can draw into LS in the coming draw [複製鏈接]

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1133
1#
發表於 12-12-31 22:12 |只看該作者 |倒序瀏覽 |打印
Please help us to work out a formula of a boy can draw into say the La Salle Primary in the coming  
" Luky Draw".  Suppose all choices are LS College (primary).
Or base on past information that the probability of a boy/girl could be drew into a designed primary school in the coming June's Draw, Thank you +++

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2191
2#
發表於 12-12-31 22:29 |只看該作者

回覆:Help to formulate the probabilty of a boy can draw into LS in the coming draw

冇,全靠lucky ! 自行都好D,不過呢個年代冇20分都唔使諗!



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1910
3#
發表於 12-12-31 23:04 |只看該作者

引用:Please+help+us+to+work+out+a+formula+of+

原帖由 edmondau.1 於 12-12-31 發表
Please help us to work out a formula of a boy can draw into say the La Salle Primary in the coming   ...
No formal and Data ! It is only nothing but "Luck"



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22515
4#
發表於 12-12-31 23:14 |只看該作者
edmondau.1 發表於 12-12-31 22:12
Please help us to work out a formula of a boy can draw into say the La Salle Primary in the coming   ...

好簡單,先搬入41校網,大抽獎時,甲乙均填LS首志願

每年教育局都會公布個別校網抽中首三志願的比率,你可以作粗略估算

再遲啲,派發統一抽獎資料時,你會具體知道LS學額,再對照41網學生人數,當一半是男生,又當全部首志願揀LS,便可計算中獎機會率

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775
5#
發表於 13-1-1 09:30 |只看該作者

回覆:Help to formulate the probabilty of a boy can draw into LS in the coming draw

上年的比例是多少呢?



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2644
6#
發表於 13-1-1 11:03 |只看該作者
Theoretically, probability = n/
where n is the occurrence and N is the population.
In this case n is the no. of place for P1 lucky draw and N is no of application.
So for a particular school, you need to know the place remaining for lucky draw and the number of applicant.

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2644
7#
發表於 13-1-1 11:08 |只看該作者
My mobile cannot edit the post.
It should be n/N

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2627
8#
發表於 13-1-1 11:53 |只看該作者

回覆:Help to formulate the probabilty of a boy can draw into LS in the coming draw

除非或然率係100%,否則唔中就係唔中



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908
9#
發表於 13-1-2 12:00 |只看該作者
MC1128 發表於 12-12-31 23:14
好簡單,先搬入41校網,大抽獎時,甲乙均填LS首志願

每年教育局都會公布個別校網抽中首三志願的比率,你可以 ...

這個方法最正路, 如果只靠甲部誇區, 機會好微, 但最後是靠LUCKY,

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863
10#
發表於 13-1-2 14:56 |只看該作者
我反而想知道個 "勸退率" 有幾高。

點評

ANChan59  Me 2  發表於 13-1-2 16:03

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2191
11#
發表於 13-1-2 15:57 |只看該作者

回覆:Help to formulate the probabilty of a boy can draw into LS in the coming draw

Really good question ! Just heard someone 勸退!is it really true ?



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1735
12#
發表於 13-1-2 17:51 |只看該作者
真有其事?  好想知喎!
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