In the game of roulette, a player can place a $4 bet on the number 15 and have a 20 probability of winning. If the metal ball lands on 15, the player gets to keep the $4 paid to play the game and the player is awarded an additional $140. Otherwise, the player is awarded nothing and the casino lakes the player's $4. Find the expected value E(x) to the player for one play of the game. If x is the gain'to a player in a game of chance, then E(x) is usually negative. This value gives the average amount per game the player can expect to lose. The expected value is s (Round to the nearest cent as needed)