1000张时P=1-(1-0.001)^1000=0.632 2000 P=1-(1-0.001)^2000=0.865 500 P=1-(1-0
![240](https://hcgf898.com//static/css/default/avatar.gif)
这个人很懒,暂无签名信息
1000张时P=1-(1-0.001)^1000=0.632 2000 P=1-(1-0.001)^2000=0.865 500 P=1-(1-0
My favourate animal is panda.i think panda is the cutist animal in the ***.It ha