Marble Odds (5 • There are orange, yellow, and green marbles in the bag. • The odds in favor of picking an orange marble are 3 to 7. • The odds in favor of picking a yellow marble are 4 to 6. • There are 4 more yellow marbles than green marbles in the bag. 1. What is the probability of picking a green marble? 2. How do you know? 3. How many marbles are in the bag? 4. How do you know?