[問題] 師大管研統計
我想請問一下
統計13.19.21.29 這四題
題目如圖 http://tinyurl.com/cbmptn
麻煩強者幫我解釋一下
謝謝^^
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◆ From: 218.166.34.2
推
03/19 10:04, , 1F
03/19 10:04, 1F
→
03/19 10:07, , 2F
03/19 10:07, 2F
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03/19 10:12, , 3F
03/19 10:12, 3F
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03/19 10:12, , 4F
03/19 10:12, 4F
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03/19 10:15, , 5F
03/19 10:15, 5F
推
03/19 15:30, , 6F
03/19 15:30, 6F
推
03/19 18:23, , 7F
03/19 18:23, 7F
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03/19 18:24, , 8F
03/19 18:24, 8F