It means that the outcome of one event doesn't affect the outcome of the other event. Now in this situation, the first event, after the first ticket is pulled out and the winner determined, the ticket is taped to the prize. Then the next ticket is pulled out to determine the winner of the second prize. Now, the winner of the second prize, the possible winners, the possible outcomes for the second prize, is dependent on who was pulled out for the first prize. You can imagine, if there's three tickets, let's say there's tickets A, B, and C in the bag, and for the first prize, they pull out ticket A. That's for the first prize. Now, when we think about who could be pulled out for the second prize, it's only going to be tickets B or C. Now, the first prize could have gone the other way.