Re: [計量] 一題計量請教
※ 引述《woody3724 (woody)》之銘言：
: A table of data had 36 entries arranged in 9 rows and 4 columns. A computer
: program randomly deleted exactly one entry in each row. If the column had the
: greatest number of entries deleted, what is the least number of entries that
: could have been deleted in that column?
: (A) 2 (B) 3 (C) 4 (D) 5 (E) 6
: 我對題目的理解如下圖
: ---------------------
: | | | | |
: --------------------- 9x4的陣列 隨機砍掉每列的其中一格
: | | | | |
: --------------------- if the column had the greatest number of entries
: | | | | |
: --------------------- deleted: 這個greatest number就是9
: | | | | |
: --------------------- 因為一欄最多只有九列
: | | | | |
: --------------------- 但是the least number of entries that could have been
: | | | | |
: --------------------- deleted in that column就不懂了
: | | | | |
: --------------------- 原本最多可以砍掉9格 怎麼又問最少可以砍幾格????
: | | | | |
: --------------------- 請問這題該如何翻譯呢?謝謝
: | | | | |
: ---------------------
剛用手機版看得頭昏昏的, 直接回文更正
其實題目問的是：「被刪掉最多格資料的那一欄」最少被刪掉幾格資料?
1) randomly deleted exactly one entry in each row.
=> 一列刪掉一格資料, 所以九列刪掉九格資料沒錯
2) If the column had the greatest number of entries deleted,
what is the least number of entries that could have been
deleted in that column
=> 直譯的話：若某欄具有最多格的被刪資料, 那它最少具有幾格被刪資料
deleted應該是修飾entries, 我猜是故意寫成這樣來誤導考生
一般不是都講 "the number of deleted entries"?
(2,2,2,2) 先平均分配被刪資料的數量, 就發現還不到9個
所以最少要分成這樣
(3,2,2,2)
(2,3,2,2)
(2,2,3,2)
(2,2,2,3)
希望我沒理解錯
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※ 編輯: owlrex (61.224.61.116), 07/13/2016 23:55:25
※ 編輯: owlrex (61.224.61.116), 07/13/2016 23:59:46
推
07/14 00:03, , 1F
07/14 00:03, 1F
推
07/14 11:00, , 2F
07/14 11:00, 2F
推
07/14 16:40, , 3F
07/14 16:40, 3F
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07/14 16:40, , 4F
07/14 16:40, 4F
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07/14 16:41, , 5F
07/14 16:41, 5F
推
07/14 16:54, , 6F
07/14 16:54, 6F
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07/14 16:55, , 7F
07/14 16:55, 7F
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07/14 16:58, , 8F
07/14 16:58, 8F
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07/14 16:59, , 9F
07/14 16:59, 9F
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07/14 17:00, , 10F
07/14 17:00, 10F
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07/14 17:00, , 11F
07/14 17:00, 11F
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