選擇性的問題 - 拼圖
By Valerie
at 2010-12-06T01:07
at 2010-12-06T01:07
Table of Contents
今天在網路上看到這問題
有一天你參加節目,主持人將一塊金塊藏在三扇門A.B.C中的其中一扇,
而其中兩扇是空的,並且叫你選擇一扇,你猜對了金塊就是你的。
假設你選了A門,此時主持人打開了C門說:「裡頭是空的」
並且給你一次選擇B門的機會。
請問!
你是換B門或是堅持A門的得獎機率較大?
這題答案似乎是b
可是為什麼呢?
換不換在機率上到底有什麼意義?
請問有人可以提供解答嗎?
解釋為什麼選b的贏的機率會變成66%
而不是各50%
--
有一天你參加節目,主持人將一塊金塊藏在三扇門A.B.C中的其中一扇,
而其中兩扇是空的,並且叫你選擇一扇,你猜對了金塊就是你的。
假設你選了A門,此時主持人打開了C門說:「裡頭是空的」
並且給你一次選擇B門的機會。
請問!
你是換B門或是堅持A門的得獎機率較大?
這題答案似乎是b
可是為什麼呢?
換不換在機率上到底有什麼意義?
請問有人可以提供解答嗎?
解釋為什麼選b的贏的機率會變成66%
而不是各50%
--
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