1. In the casino game of roulette, a ball is rolled around the rim of a circular bowl while a wheel containing 38 slots into which the ball can drop is spun in the opposite direction from the rolling ball; 18 of the slots are red, 18 are black, and 2 are green. A player pays $1 to play, and wins $2 if the ball falls into the color slot the player has wagered on. Assume a player decides to bet that the ball will fall into one of the red slots. a. What is the expected return on a single bet of $1 on red