设随机变量(X,Y)的概率密度函数为[img=282x73]1802d3b87f886ed.png[/img],F(x,y)是(X,Y)在(x,y)点的分布函数，则以下选项正确的是
A: [img=158x25]1802d3b887c2d6a.png[/img]
B: [img=175x25]1802d3b89023808.png[/img]
C: [img=116x25]1802d3b89a1a88f.png[/img]
D: [img=149x25]1802d3b8a2b3c14.png[/img]
E: [img=175x25]1802d3b8ab2503b.png[/img]
F: [img=149x25]1802d3b8b3de5d3.png[/img]
G: [img=134x25]1802d3b8bc330fe.png[/img]
H: [img=116x25]1802d3b8c43d207.png[/img]
I: [img=116x25]1802d3b8cd521f9.png[/img]
A: [img=158x25]1802d3b887c2d6a.png[/img]
B: [img=175x25]1802d3b89023808.png[/img]
C: [img=116x25]1802d3b89a1a88f.png[/img]
D: [img=149x25]1802d3b8a2b3c14.png[/img]
E: [img=175x25]1802d3b8ab2503b.png[/img]
F: [img=149x25]1802d3b8b3de5d3.png[/img]
G: [img=134x25]1802d3b8bc330fe.png[/img]
H: [img=116x25]1802d3b8c43d207.png[/img]
I: [img=116x25]1802d3b8cd521f9.png[/img]
举一反三
- 设随机变量(X,Y)的概率密度函数为[img=282x73]18032ceadce22a4.png[/img],F(x,y)是(X,Y)在(x,y)点的分布函数，则以下选项正确的是 A: [img=158x25]18032ceae9515e0.png[/img] B: [img=175x25]18032ceaf4e7654.png[/img] C: [img=116x25]18032ceafdb09be.png[/img] D: [img=149x25]18032ceb070b5b7.png[/img] E: [img=175x25]18032ceb106ed9b.png[/img] F: [img=149x25]18032ceb1968bdb.png[/img] G: [img=134x25]18032ceb22e4b1d.png[/img] H: [img=116x25]18032ceb2ba9d91.png[/img] I: [img=116x25]18032ceb3478823.png[/img]
- 设随机变量(X,Y)的概率密度函数为[img=282x73]18032ce7d3b76f3.png[/img],F(x,y)是(X,Y)在(x,y)点的分布函数，则以下选项正确的是 A: [img=158x25]18032ce7dc22b03.png[/img] B: [img=175x25]18032ce7e5106d5.png[/img] C: [img=116x25]18032ce7edd92be.png[/img] D: [img=149x25]18032ce7f62be5b.png[/img] E: [img=175x25]18032ce7fe86d67.png[/img] F: [img=149x25]18032ce8069fa11.png[/img] G: [img=134x25]18032ce80efee5a.png[/img] H: [img=116x25]18032ce817bf1f8.png[/img] I: [img=116x25]18032ce820c8711.png[/img] J: [img=125x25]18032ce82994f27.png[/img] K: [img=134x25]18032ce831b3464.png[/img]
- 应用Matlab软件计算行列式[img=110x88]17da5d7b00219d6.png[/img]为( ). A: x^2 - 6*x^2*y^2 + 8*x*y^3 - 3*y^4 B: x^3 - 6*x^2*y^2 + 8*x*y^3 - 3*y^4 C: x^4 - 6*x^2*y^2 + 8*x*y^3 - 3*y^4 D: x^5- 6*x^2*y^2 + 8*x*y^3 - 3*y^4
- 求不定积分[img=121x54]17da653839aa6ae.png[/img]； （ ） A: log(x^2 + 3*x + 25/4)/4 + (5*atan(x/2 + 3/4))/4 B: log(x^2 + 3*x + 25/4)/4 C: (5*atan(x/2 + 3/4))/4 D: log(x^2 + 3*x + 25/4)/4 - (5*atan(x/2 + 3/4))/4
- 二维随机变量（X,Y）的分布函数F(x,y),下面错误的是（ ） A: [img=116x25]18038d36323e723.png[/img] B: [img=134x25]18038d3639fe9f5.png[/img] C: [img=120x25]18038d3641ba2cd.png[/img] D: F(x,y)是连续函数