Contact us
Choose a category below so we can get back to you as quickly as possible.
不考慮兩個色子擲的先後順序 每個色子都有6種可能.一共6*6=36種基本情况 不大於7的情况有: (1,1)(1.2)(1.3)(1.4)(1.5)(1.6)(2.2)(2.3)(2.4)(2.5)(3.3)(3.4) 12種情况,所以12/36 =1/3
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.