At this years

At this years state fair there was a dice rolling game.  If you rolled two dice and got a sum of 2 or 12, you won $13.  If you rolled a 7, you won $4.  Any other roll was a loss.  It cost $1 to play one game with one roll of the dice.  What is the expectation of the game?  The expectation of the game is approximately how many dollars?  

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