 "fig:"){width="0.0cm"} ![In Blue: $f_{Z}(p,x)$ as function of $x$. In Orange: $f_{W}(p,x)$ as function of $x$. The value of ${{p}}$ in the four pictures is, respectively, $p=0.00,0-\sqrt{0}/0,0.0$. The green line is at height $0$. []{data-label="fig:rates"}](f0f000