Puzzleup 2014 (17) Coin Game - 拼圖
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By Elvira
at 2014-11-19T21:24
at 2014-11-19T21:24
Table of Contents
題目網址: http://www.puzzleup.com/2014/
http://www.puzzleup.com/2014/puzzle/?258
答題時限: 11月20日7PM-比賽結束(約12月17日)
加分時限: 11月20日7PM-11月26日6:59PM
答對可得基本分100分。答案可上傳5次,每改1次答案從基本分扣20分。
比賽期間內可隨時上傳答案,加分時限內答對第n天加(6-n)分
另依題目的難易有額外加分(如有80%的人這題答錯,答對者加80分)
◆Coin Game
You will play a game by tossing a fair coin 9 times. Whenever a sequence of
two heads following a tail (…THH…) is obtained you will get 1 point.
(Maximum point for a game is therefore 3). If you play this game many times
what will be the average of your points?
Note:If needed, use three digits after the decimal point.
你將進行一個擲一公平硬幣九次的遊戲。
每當在一次反面後出現連續兩次正面時 (…反正正…),你便獲得一分。
(因此每次遊戲的最高分數為三分。)
若你進行此遊戲許多次,你的平均得分是多少?
註:若有需要,小數點後須補齊三位數。
--
最後一句我也覺得很怪,為此我已經先解完了……
只能說這句話有點欲蓋彌彰 (望)
不過它倒是給了一個重要的訊息就是答案要用小數輸入就是
--
LPH [acronym]
= Let Program Heal us
-- New Uncyclopedian Dictionary, Minmei Publishing Co.
--
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