A$.$ a factory that produces pistons for cars, Machine $1$ produced $378$ satjsfactory pitions and $322$ unsabidactory pistons today. Machise $2$ produced $414$ satisfactery pistons and $276$ unsatidactory pistons today. Suppose that one puston from Mactine $1$ and one pitoan from Machine $2$ are chosen at random from

Do not round your answer. $($tif necessary, conult a lit of formulas.$)$