In ping pong if the ball hits your paddle when it's out is it the other person's point?

It depends.

The crucial test for whether a player wins a point after volleying the ball is ... was the ball moving towards, or away from, the playing surface?

Let me explain with a question and answer ...If I hit a ball to my opponent, and it doesn't hit their half of the playing surface (table) because it's a bad shot ... but they hit the ball anyway, who gets the point?

Well, it depends ...If your opponent hits/volleys the ball whilst it's still travelling over the playing surface, you win the point.

But if it's already passed over the playing surface and it's obviously not going hit the table, your opponent wins the point.

In other Words, if there's a chance that the ball might hit the table because it's still travelling towards it, your opponent would lose the point if he prevented it from doing so by hitting/volleying it ...

But ...

If the ball has already passed over the table and/or is travelling away from the table, your opponent wins the point whether he hits/volleys it or not.