$(******$~~$\sqrt[\phantom{2}]{3})$ A certain random variable $x$ has a Gamma distribution with scale parameter $b$ and shape parameters $$ and $s.$ This intimidating technical statement simply means that $)<mi\; id="EditorElement\_3529661">(</mi><mn\; id="EditorElement\_3529655">0</mn>$ and, for every real $x>0,$

for $x0.$ Q