随机变量(x,y)只取下面值,0,0:-1,1:-1,2:2,0:且相应概率为0.2,0.3,0.1,0.4,求联合概率分布表及其随机变量(x,y)只取下面值,0,0:-1,1:-1,2:2,0:且相应概率为0.2,0.3,0.1,0.求联合概率分布表及其边
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/25 15:41:04
![随机变量(x,y)只取下面值,0,0:-1,1:-1,2:2,0:且相应概率为0.2,0.3,0.1,0.4,求联合概率分布表及其随机变量(x,y)只取下面值,0,0:-1,1:-1,2:2,0:且相应概率为0.2,0.3,0.1,0.求联合概率分布表及其边](/uploads/image/z/5269747-67-7.jpg?t=%E9%9A%8F%E6%9C%BA%E5%8F%98%E9%87%8F%EF%BC%88x%2Cy%EF%BC%89%E5%8F%AA%E5%8F%96%E4%B8%8B%E9%9D%A2%E5%80%BC%2C0%2C0%EF%BC%9A-1%2C1%3A-1%2C2%3A2%2C0%EF%BC%9A%E4%B8%94%E7%9B%B8%E5%BA%94%E6%A6%82%E7%8E%87%E4%B8%BA0.2%2C0.3%2C0.1%2C0.4%2C%E6%B1%82%E8%81%94%E5%90%88%E6%A6%82%E7%8E%87%E5%88%86%E5%B8%83%E8%A1%A8%E5%8F%8A%E5%85%B6%E9%9A%8F%E6%9C%BA%E5%8F%98%E9%87%8F%EF%BC%88x%2Cy%EF%BC%89%E5%8F%AA%E5%8F%96%E4%B8%8B%E9%9D%A2%E5%80%BC%EF%BC%8C0%2C0%EF%BC%9A-1%2C1%3A-1%2C2%3A2%2C0%EF%BC%9A%E4%B8%94%E7%9B%B8%E5%BA%94%E6%A6%82%E7%8E%87%E4%B8%BA0.2%2C0.3%2C0.1%2C0.%E6%B1%82%E8%81%94%E5%90%88%E6%A6%82%E7%8E%87%E5%88%86%E5%B8%83%E8%A1%A8%E5%8F%8A%E5%85%B6%E8%BE%B9)
随机变量(x,y)只取下面值,0,0:-1,1:-1,2:2,0:且相应概率为0.2,0.3,0.1,0.4,求联合概率分布表及其随机变量(x,y)只取下面值,0,0:-1,1:-1,2:2,0:且相应概率为0.2,0.3,0.1,0.求联合概率分布表及其边
随机变量(x,y)只取下面值,0,0:-1,1:-1,2:2,0:且相应概率为0.2,0.3,0.1,0.4,求联合概率分布表及其
随机变量(x,y)只取下面值,0,0:-1,1:-1,2:2,0:且相应概率为0.2,0.3,0.1,0.求联合概率分布表及其边缘分布,求EX,EY
随机变量(x,y)只取下面值,0,0:-1,1:-1,2:2,0:且相应概率为0.2,0.3,0.1,0.4,求联合概率分布表及其随机变量(x,y)只取下面值,0,0:-1,1:-1,2:2,0:且相应概率为0.2,0.3,0.1,0.求联合概率分布表及其边
联合概率分布表
Y 0 1 2
X
-1 0 0.3 0.1
0 0.2 0 0
2 0.4 0 0
P(x=-1)=0.4,P(X=0)=0.2,P(X=2)=0.4
P(Y=0)=0.6,P(Y=1)=0.3,P(Y=2)=0.1
EX=-1*0.4+0*0.2+2*0.4=0.4
EY=0*0.6+1*0.3+2*0.1=0.5
随机变量(x,y)只取下面值,0,0:-1,1:-1,2:2,0:且相应概率为0.2,0.3,0.1,0.4,求联合概率分布表及其随机变量(x,y)只取下面值,0,0:-1,1:-1,2:2,0:且相应概率为0.2,0.3,0.1,0.求联合概率分布表及其边
随机变量(X,Y)在区域:0
二维随机变量(X,Y)在区域D:0
随机变量x,y在g=(0
已知随机变量X~N(0,1),则随机变量Y=2X+1的概率密度fy(Y)?
二维随机变量(X,Y)的概率密度f(x,y)=e^-y,0
随机变量(X,Y)概率密度为f(x,y)=e^(-y)(0
已知随机变量(X,Y)的概率密度为 f(x,y)=e^(-y) 0
设随机变量(X,Y)服从G={(x,y)|0
设随机变量(X,Y)~f(x,y)=1,0
设随机变量(X.Y)~f(x,y)=1,0
设随机变量X服从(0,1)区间上的均匀分布,则随机变量Y=X²的密度函数
设随机变量(X,Y)联合概率密度为f(x,y)=3x,0
设随机变量X与Y相互独立,N(1,2),(0,1),求随机变量Z=X-Y的分布,并求P(X>Y )的概率
已知二维随机变量(x,y)的概率密度为f(x,y)=0
设二维随机变量(X,Y)的概率密度为f(x,y)=1 0
设随机变量X~N(0,1),Y=X²,求Y的概率密度.
已知二维随机变量(X,Y)的概率密度为f(x,y)=1,0