作者查詢 / Oreck
作者 Oreck 在 PTT 全部看板的留言(推文), 共299則
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12F→:因為兩次投球不互相影響彼此獨立所以聯合機率等於10/08 15:53
13F→:所以是0.9X0.8=0.7210/08 15:55
14F→:這樣算對吧~~10/08 15:55
15F→:好像也不是這樣算~~~算了~~我機率學不太好^^"10/08 15:57
3F推:carmex的便宜又好用~~~GOOD140.124.131.156 01/04