In the game of​ roulette, a player can place a ​$4 bet on the number 15 and have a 138 probability of winning. If the metal ball lands on 15​, the player gets to keep the ​$4 paid to play the game and...

In the game of​ roulette, a player can place a

bet on the number

and have a

probability of winning. If the metal ball lands on

the player gets to keep the

paid to play the game and the player is awarded an additional

​Otherwise, the player is awarded nothing and the casino takes the​ player's

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

​(Round to the nearest cent as​ needed.)