There's a game that the dealer has only 5 cards each with a different digit. He writes down 3 different digit corresponding to a randomly picked card on a paper slip and put it face down where both you you can see it. You must pick 3 cards, what is the chance you picked the same as on the slip?
Also it cost $1 to play and if you win you get $5, what's the average win amount, ie $0.75 ?