1. 3.30 Twenty-five persons attended a “reverse raffle,” in which everyone bought a num ber. Numbered balls were then drawn out of a bin one at a time at random. The last ball in the bin would be the winner. But when the organizers got down to the last ball, they discovered that three numbered balls had been unintentionally overlooked. They added those balls to the bin and continued the drawing. Was the raffle still fair? Use conditional probabilities to motivate your answer.