條件機率(終極版) - 拼圖
By Daph Bay
at 2009-11-23T20:29
at 2009-11-23T20:29
Table of Contents
某人(國王or神仙or...)告訴你:
「袋子裡有兩個球,只有黑白兩色,有可能是黑的也有可能是白的。」
當你隨機拿了一顆之後,他倒出另外一顆,結果發現是白球。
某人問:「猜猜看,你拿的是什麼顏色的球?猜對就賞你榮華富貴!」
~~
猜白球的勝算高,還是都一樣呢?
看似很簡單,對吧 :)
--
「袋子裡有兩個球,只有黑白兩色,有可能是黑的也有可能是白的。」
當你隨機拿了一顆之後,他倒出另外一顆,結果發現是白球。
某人問:「猜猜看,你拿的是什麼顏色的球?猜對就賞你榮華富貴!」
~~
猜白球的勝算高,還是都一樣呢?
看似很簡單,對吧 :)
--
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拼圖
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