題組內容

2、Let X and Y have the joint p.d.f. described as follows:

and f(x,y) is equal to zero elsewhere.

(1) \( (10\%) \) Find the means \( \mu{x} \) and \( \mu{y} \), the variances \( \sigma{x}^{2} \) and \( \sigma{y}^{2} \), and the correlation coefficient \( \rho \).