题目
设随机变量X与Y相互独立,其联合分布律为则有( )A. α=0.10, β=0.22B. α=0.22, β=0.10C. α=0.20, β=0.12D. α=0.12, β=0.20
设随机变量X与Y相互独立,其联合分布律为则有( )
A. α=0.10, β=0.22
B. α=0.22, β=0.10
C. α=0.20, β=0.12
D. α=0.12, β=0.20
题目解答
答案
A. α=0.10, β=0.22
A. α=0.10, β=0.22
B. α=0.22, β=0.10
C. α=0.20, β=0.12
D. α=0.12, β=0.20