题目
37. (2.0分)27.(X,Y)联合分布函数F(x,y),P(1≤X≤2,3≤Y≤4)=()A. F(2,4)-F(1,4)-F(2,3)+F(1,3)B. F(2,4)-F(1,4)C. F(2,4)-F(2,3)D. F(2,4)+F(1,3)
37. (2.0分)
27.(X,Y)联合分布函数F(x,y),P{1≤X≤2,3≤Y≤4}=()
A. F(2,4)-F(1,4)-F(2,3)+F(1,3)
B. F(2,4)-F(1,4)
C. F(2,4)-F(2,3)
D. F(2,4)+F(1,3)
题目解答
答案
A. F(2,4)-F(1,4)-F(2,3)+F(1,3)