[無言] 記者的數學
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今天閒暇之餘 看到了下列的新聞
一開始不以為意。。。
http://i.imgur.com/d0uOspz.jpg
看起來沒什麼大問題
也只是覺得台灣的薪資狀況不太好
but but but
那個就是中位數啊!
當然一半的人拿不到
記者真的知道什麼是中位數嗎==”
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※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 223.137.225.65
※ 文章網址: https://www.ptt.cc/bbs/StupidClown/M.1490797564.A.92F.html
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03/29 22:54, , 1F
03/29 22:54, 1F
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03/29 22:55, , 2F
03/29 22:55, 2F
推
03/30 01:23, , 3F
03/30 01:23, 3F
推
03/30 01:43, , 4F
03/30 01:43, 4F
推
03/30 02:34, , 5F
03/30 02:34, 5F
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03/30 03:30, , 6F
03/30 03:30, 6F
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03/30 03:36, , 7F
03/30 03:36, 7F
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03/30 05:40, , 8F
03/30 05:40, 8F
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03/30 07:18, , 9F
03/30 07:18, 9F
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03/30 09:24, , 10F
03/30 09:24, 10F
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03/30 09:46, , 11F
03/30 09:46, 11F
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03/30 10:30, , 12F
03/30 10:30, 12F
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03/30 10:56, , 13F
03/30 10:56, 13F
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03/30 11:21, , 14F
03/30 11:21, 14F
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03/30 11:31, , 15F
03/30 11:31, 15F
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03/30 11:42, , 16F
03/30 11:42, 16F
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03/30 11:47, , 17F
03/30 11:47, 17F
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03/30 12:22, , 18F
03/30 12:22, 18F
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03/30 12:37, , 19F
03/30 12:37, 19F
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03/30 12:37, , 20F
03/30 12:37, 20F
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03/30 12:37, , 21F
03/30 12:37, 21F
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03/30 12:51, , 22F
03/30 12:51, 22F
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03/30 12:51, , 23F
03/30 12:51, 23F
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03/30 12:59, , 24F
03/30 12:59, 24F
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03/30 13:00, , 25F
03/30 13:00, 25F
補充
中位數就是從小排到大
中間的那個位置的數值
所以一定是50%
下面附上一個例子
以下是7個人的薪資
而中位數就是110
平均數是227
http://i.imgur.com/EZ4INbk.jpg
※ 編輯: hsin60832 (223.137.225.65), 03/30/2017 13:10:38
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03/30 13:28, , 26F
03/30 13:28, 26F
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03/30 13:28, , 27F
03/30 13:28, 27F
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03/30 13:30, , 28F
03/30 13:30, 28F
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03/30 13:32, , 29F
03/30 13:32, 29F
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03/30 14:03, , 30F
03/30 14:03, 30F
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03/30 14:07, , 31F
03/30 14:07, 31F
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03/30 14:07, , 32F
03/30 14:07, 32F
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03/30 14:08, , 33F
03/30 14:08, 33F
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03/30 14:10, , 34F
03/30 14:10, 34F
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03/30 14:28, , 35F
03/30 14:28, 35F
噓
03/30 14:29, , 36F
03/30 14:29, 36F
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03/30 14:29, , 37F
03/30 14:29, 37F
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03/30 14:29, , 38F
03/30 14:29, 38F
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03/30 16:04, , 39F
03/30 16:04, 39F
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03/30 16:11, , 40F
03/30 16:11, 40F
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03/30 17:01, , 41F
03/30 17:01, 41F
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03/30 17:01, , 42F
03/30 17:01, 42F
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03/30 17:09, , 43F
03/30 17:09, 43F
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03/30 18:43, , 44F
03/30 18:43, 44F
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03/30 19:02, , 45F
03/30 19:02, 45F
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03/30 19:55, , 46F
03/30 19:55, 46F
噓
03/30 21:25, , 47F
03/30 21:25, 47F
推
03/30 22:59, , 48F
03/30 22:59, 48F
噓
03/31 04:03, , 49F
03/31 04:03, 49F
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03/31 04:03, , 50F
03/31 04:03, 50F
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03/31 04:03, , 51F
03/31 04:03, 51F
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03/31 04:03, , 52F
03/31 04:03, 52F
噓
03/31 09:35, , 53F
03/31 09:35, 53F
以上的講解數學邏輯上都對
但在這個應用上
不會是
1)大家薪資都一樣的狀況
2)半數 是實際上的數字/2
假設拿來計算的的資料共
1,000,000
而剛好是中位數的資料 不知道有幾個
所以一定要是半數拿不到 或拿不到
並不是可以知道的情況
但的確中位數的概念就是排序中的正中間
※ 編輯: hsin60832 (223.137.225.65), 03/31/2017 11:34:54
推
03/31 15:43, , 54F
03/31 15:43, 54F
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03/31 22:38, , 55F
03/31 22:38, 55F
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03/31 22:38, , 56F
03/31 22:38, 56F
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03/31 22:39, , 57F
03/31 22:39, 57F
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03/31 22:40, , 58F
03/31 22:40, 58F
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03/31 22:41, , 59F
03/31 22:41, 59F
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03/31 22:45, , 60F
03/31 22:45, 60F
p大 請問 薪資結構有可能長這樣嗎
薪資的資料量更不可能就這麼少
48/100 是不是也一般稱成半數?
Q2 本來就是50%的位置
考慮到這個數字實際的狀況
所以當然就是相當一半的人拿不到
※ 編輯: hsin60832 (223.137.225.65), 04/01/2017 12:04:58
推
04/02 01:03, , 61F
04/02 01:03, 61F
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04/02 01:04, , 62F
04/02 01:04, 62F
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04/02 01:04, , 63F
04/02 01:04, 63F
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04/02 01:05, , 64F
04/02 01:05, 64F
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04/02 01:05, , 65F
04/02 01:05, 65F
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04/02 01:06, , 66F
04/02 01:06, 66F
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04/02 01:07, , 67F
04/02 01:07, 67F
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04/02 01:07, , 68F
04/02 01:07, 68F
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04/02 01:08, , 69F
04/02 01:08, 69F
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04/02 01:08, , 70F
04/02 01:08, 70F
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04/02 01:11, , 71F
04/02 01:11, 71F
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04/02 01:11, , 72F
04/02 01:11, 72F
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04/02 01:11, , 73F
04/02 01:11, 73F
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04/02 01:12, , 74F
04/02 01:12, 74F
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04/02 01:12, , 75F
04/02 01:12, 75F
推
04/02 19:31, , 76F
04/02 19:31, 76F
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04/03 12:06, , 77F
04/03 12:06, 77F
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04/03 12:06, , 78F
04/03 12:06, 78F
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04/03 12:06, , 79F
04/03 12:06, 79F
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04/03 12:06, , 80F
04/03 12:06, 80F
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04/03 12:06, , 81F
04/03 12:06, 81F
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04/03 12:06, , 82F
04/03 12:06, 82F
推
04/07 01:32, , 83F
04/07 01:32, 83F
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04/07 01:32, , 84F
04/07 01:32, 84F
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04/07 01:32, , 85F
04/07 01:32, 85F
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04/07 01:33, , 86F
04/07 01:33, 86F
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04/07 01:33, , 87F
04/07 01:33, 87F
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04/07 01:33, , 88F
04/07 01:33, 88F
推
04/07 01:36, , 89F
04/07 01:36, 89F