Zynolox
2020-03-08T13:23:27+00:00
假设一张卡出货的概率是0.1%,那么抽不出这张卡的概率就是99.99%,那么十次不出的概率就是99.99%得十次方,有带数学家看看我这样想对不对吗
[img]https://img.nga.178.com/attachments/mon_202003/15/-7Q5-jx45ZjT3cSn0-1ds.jpg.medium.jpg[/img]
[img]https://img.nga.178.com/attachments/mon_202003/15/-7Q5-jx45ZjT3cSn0-1ds.jpg.medium.jpg[/img]