Suppose X and Y are random variables. Find k such that the function $f ( x , y ) = \left\{ \begin{array} { c l }
0.2 e ^ { - ( 05 x + \not y ) } & \text { if } x \geq 0 , y \geq 0 \
0 & \text { otherwise }
\end{array} \right.$ is a joint density function.
A)0.2
B)2
C)0.3
D)1
E)4
F)0.4
G)0.1
H)0

Question

Suppose X and Y are random variables. Find k such that the function $f ( x , y ) = \left\{ \begin{array} { c l } 
0.2 e ^ { - ( 05 x + \not y ) } & \text { if } x \geq 0 , y \geq 0 \
0 & \text { otherwise }
\end{array} \right.$ is a joint density function.
A)0.2
B)2
C)0.3
D)1
E)4
F)0.4
G)0.1
H)0

Quizplus · Accepted Answer

The Answer of Suppose X and Y are random variables. Find k such that the function $f ( x , y ) = \left\{ \begin{array} { c l } 
0.2 e ^ { - ( 05 x + \not y ) } & \text { if } x \geq 0 , y \geq 0 \
0 & \text { otherwise }
\end{array} \right.$ is a joint density function.
A)0.2
B)2
C)0.3
D)1
E)4
F)0.4
G)0.1
H)0

Suppose X and Y Are Random Variables Is a Joint Density Function