On the roulette wheel in Las Vegas there are 38 numbered slots: numbers 1-36, a zero and a double zero. The numbers 1-36 alternate between red and black. The zero and double zero are green. If you bet on "red" and a red appears on the wheel you double your bet (i.e., for a $1 bet you would get $2). What is the expected value from making a $100 bet on "red"? (Hint you will get a positive number here).