Cards are repeatedly drawn from a deck of poker cards with replacement. Let $X$ and $Y$ be the numbers of extractions in which the first heart and the first clover come out respectively. Calculate The joint probability function $p_{X, Y}$
I know how to get the joint probability, but what does it mean: Let X and Y be the numbers of extractions in which the first heart and the first clover come out respectively how I interpret that mathematically, being with replacement $x, y \in [1, \infty )$ that it comes out on the first occasion or that it never comes out? I want to know What values can (x, y) take?