題組內容
The random variables X and Y have the joint probability density func- tion

where -∞ < x <∞ and -∞< y < ∞.
(b) (4%) Find the conditional probability density function
.
The random variables X and Y have the joint probability density func- tion

where -∞ < x <∞ and -∞< y < ∞.
(b) (4%) Find the conditional probability density function
.