機率問題
如題，請問各位大大這題圈起來那邊為何要這樣設？
是設x那是他的最大值嗎？
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推
09/09 17:23, , 1F
09/09 17:23, 1F
→
09/09 17:23, , 2F
09/09 17:23, 2F
推
09/09 17:28, , 3F
09/09 17:28, 3F
→
09/11 11:51, , 4F
09/11 11:51, 4F
→
09/11 11:51, , 5F
09/11 11:51, 5F
推
09/11 22:38, , 6F
09/11 22:38, 6F
→
09/11 22:38, , 7F
09/11 22:38, 7F
討論串 (同標題文章)
