条件概率密度(在线等)已知f(x,y)=e^-y(0

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/22 03:33:52
条件概率密度(在线等)已知f(x,y)=e^-y(0条件概率密度(在线等)已知f(x,y)=e^-y(0条件概率密度(在线等)已知f(x,y)=e^-y(0P(A|B)=P(AB)/P(B)所以P(X

条件概率密度(在线等)已知f(x,y)=e^-y(0
条件概率密度(在线等)
已知f(x,y)=e^-y(0

条件概率密度(在线等)已知f(x,y)=e^-y(0
P(A|B)=P(AB)/P(B)
所以P(X>2|Y2,Y4)e^(-y)dy / ∫(0->4)dx∫(x->4)e^(-y)dy
=(e^2-3)/(e^4-5)

答案为(e^2-3)/(e^4-5)