Ramon chooses the ingredients by pointing at the list without looking. What is the probability his trail mix will have raisins and chocolate chips? All 12 combinations are equally likely. Three combinations have raisins and chocolate chips. The probability Ramon's trail mix will have raisins and chocolate chips is 3/12 or 1/4. As a percent, there is a 25% chance that Ramon's trail mix will have raisins and chocolate chips.