Simple expected value calculations are at the heart of Kahneman and Tversky's prospect theory. Calculate the expected value of the following gamble. You are playing roulette. A roulette wheel is divided into 38 equal-size pockets numbered from 0 to 36 with an additional 00 number. 18 pockets are red; 18 are black; and 2 are green. For the sake of argument, suppose that the payoffs are as follows. (These payoffs would be determined by the way you spread your bets on specific numbers.) . Red: $11 Black: -$16 Green: $7 Assume that the roulette ball has an equal chance of landing in each pocket. What is the expected value of your bet, i.e. the expected payoff from one round of play? Round your answer to the nearest penny. Do not enter the $ symbol in your answer. If the expected value is negative, then include a minus sign