5.101 FIFA World Cup In the FIFA World Cup, 32 teams play 64 matches. Of these, 50% qualify for the round of 16 series of matches. Half of the teams in the round of 16 continue to the quarterfinals, and of these, 50% continue to the semifinals. The winners of the semifinals compete in the final match.

a. Using the multiplication rule with conditional probabilities, what percentage of the teams is selected for the final match?

b. Given that a team plays in the round of 16, find the probability that it progresses to the final match.