Suppose someone gives you 15 to 4 odds that you can't roll 2 even numbers with the roll of 2 fair dice. This means you win $15 if you succeed and you lose $4 if you fail. What is the expected value of this game to you? What can you expect if you play 200 times?

You can expect to make more money. There are 3 possibilities for this answer this question which gives each one 33.33% chance. Only one of these possibilities will leave you with money.

I hope that this helps