设二维随机变量X,Y的联合分布律为P(X=0,Y=0)=0.25,P(X=0,Y=1)=0.3,P(X=0,Y=2)=0.45,则P(X=0)=A
设二维随机变量X,Y的联合分布律为P(X=0,Y=0)=0.25,P(X=0,Y=1)=0.3,P(X=0,Y=2)=0.45,则P(X=0)=0.1
原创 | 2022-10-12 01:29:40 |浏览:1.6万
设二维随机变量X,Y的联合分布律为P(X=0,Y=0)=0.25,P(X=0,Y=1)=0.3,P(X=0,Y=2)=0.45,则P(X=0)=A
设二维随机变量X,Y的联合分布律为P(X=0,Y=0)=0.25,P(X=0,Y=1)=0.3,P(X=0,Y=2)=0.45,则P(X=0)=0.1