推 zeowo:標題錯誤 11/01 21:59
題目如下:
In the game of Parcheesi each player rolls a pair of dice on each turn.
In order to begin the game,the player must roll a five on at least one
dice,or a total of five on both dice.Find the probability that the player
does not get to begin the roll on either their first or second rolls.
他大概是在說,要讓比賽開始,就必須要擲一對骰子,並且至少有一顆骰子點數為5
或者是兩顆骰子點數合為五,才能讓比賽開始
要讓比賽開始的機率我算出來是11/36+4/36=5/12
但他最後問的意思我就不太清楚了
他是問說算出在第一次投擲或者第二次投擲,不能讓比賽開始的機率嗎
這題是有兩個人輪流骰骰子嗎?
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