Puzzleup 2019 (09) TEST SCORE - 拼圖
By Hardy
at 2019-09-19T10:37
at 2019-09-19T10:37
Table of Contents
題目網址: http://www.puzzleup.com/2019/
http://www.puzzleup.com/2019/puzzle/?09
答題時限: 09月19日7PM-比賽結束
加分時限: 09月19日7PM-09月25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)
◆TEST SCORE
You will take a test with 10 questions and will get 1 point for each
correct answer. If the probabilities of getting 8 points and 7 points
are equal, what is the probability of correctly answering a question?
Note: The probability of each question being answered correctly is the
same.
Enter your answer as a simplified fraction. Example:12/23
你參加一個考試,有十道試題,每題答案會得1分。如果拿8分的機率跟拿7分的機
率一樣,問答對一題的機率為何?
註:每道試題的答對機率是一樣的。
以最簡分數回答,如 12/23。
--
http://www.puzzleup.com/2019/puzzle/?09
答題時限: 09月19日7PM-比賽結束
加分時限: 09月19日7PM-09月25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)
◆TEST SCORE
You will take a test with 10 questions and will get 1 point for each
correct answer. If the probabilities of getting 8 points and 7 points
are equal, what is the probability of correctly answering a question?
Note: The probability of each question being answered correctly is the
same.
Enter your answer as a simplified fraction. Example:12/23
你參加一個考試,有十道試題,每題答案會得1分。如果拿8分的機率跟拿7分的機
率一樣,問答對一題的機率為何?
註:每道試題的答對機率是一樣的。
以最簡分數回答,如 12/23。
--
Tags:
拼圖
All Comments
By Lydia
at 2019-09-19T17:06
at 2019-09-19T17:06
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