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作者 isd2630 在 PTT [ Math ] 看板的留言(推文), 共7則
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3F推:骰子點數和的機率前面和後面會相對稱06/25 23:34
4F→:十次點數和的期望值是3506/25 23:34
5F→:30和40的中間剛好是35~06/25 23:35
10F推:骰子點數和的機率會以期望值為基準前後相對稱06/27 23:08
2F推:因為要計算平均次數~05/06 00:52
7F推:讓第15項是等差中項的項數代入....02/22 11:41
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