Jim loves to play roulette! Jim bets $ 10 on a single number, usually the number 13 . Jim has a 1/38 chance of winning. If the ball lands on that number, Jim wins $ 350 (and gets to keep the $ 10 bet!). If it lands on any other number, a 37/38 probability, Jim loses the bet. What is the expected value of a game of roulette