The expected value is -$0.33.
The probability of winning is 1/6.  The probability of losing is 5/6.
If you win, your prize is 10-2 = 8, since you paid $2 to pay the game.  If you lose, you lose the $2 you spent.
The expected value would be the probability of winning, 1/6, multiplied by the winnings, 8, added to the probability of losing, 5/6, multiplied by the loss, -2:
1/6*8 + 5/6(-2) = 8/6 - 10/6 = -2/6 = -0.33
        
                    
             
        
        
        
Answer:
x=3
Step-by-step explanation:
try different values on the line! plug them in and you'll see that every x value is 3!
 
        
                    
             
        
        
        
A rational number would be 81/10 or 8.1