摘要: 答: p(a1)=0.2 ,p(a2)=0.3 ,p(a3)=0.5 FX(0)=0,FX(1)=0.2 ,FX(2)=0.5 ,FX(3)=1.0, U(0)=1 ,L(0)=0 又因为 X(ai)=i, 所以 X(a1)=1,X(a2)=2,X(a3)=3 L(n)=L(n-1)+(U(n-1) 阅读全文
posted @ 2016-11-05 20:48 ly李蓥 阅读(147) 评论(0) 推荐(0)