Let X and Y be independent positive random variables. Let Z=X/Y.
In what follows, all occurrences of x, y, z are assumed to be
positive numbers.
Suppose that X and Y are discrete, with known PMFs, pX and pY.
Then,
pZ|Y(z|y)=pX(?).
What is the argument in the place of the question mark?
Suppose that X and Y are continuous, with known PDFs, fX and fY.
Provide a formula, analogous to the one in part (a), for fZ|Y(z|y)
in terms...