Final answer:
The swim coach has detailed statistics about the swim team's composition, including the number of swimmers at each level of proficiency and their practice frequencies, and can use this data to inform about a randomly chosen swimmer.
Step-by-step explanation:
The swim coach provides various pieces of information for the entire swim team and for each swimmer. There are a total of 150 members on the community swim team. Out of these, 75 are advanced swimmers, 47 are intermediate swimmers, and the remainder, which is 28, are novice swimmers. Furthermore, the coach has information on practice frequency where 40 advanced swimmers, 30 intermediate swimmers, and 10 novice swimmers practice four times a week. When a member is chosen randomly, the coach can inform about their swimming level and their practice habits based on these statistics.