Question

投4个4面骰子,得到10的概率是多少,请给出计算过程,

Answer 1

掷4个4面骰子,得到10点的概率是

(C(10-1,4-1)-C(4,1)*C(10-4-1,4-1))/4^4

=(C(9,3)-4*C(5,3))/4^4

=(120-4*10)/4^4

=80/4^4

=5/16