Question 1132895

E = (payoff)*Pr(win) - (wager)*Pr(lose)
  =  4*18/(18+18+2) - 4*(18+2)/(18+18+2)
   = 72/38 - 80/38
   = -8/38<br>

Since this is a negative expectation, the player is expected to LOSE (4/19) dollars or about $0.21 per play.