Final answer:
Training is tailored for several specific groups, including hypothetical experiment participants, swim team members by skill level and practice schedule, different target markets for a video game, and a representative group mirroring a larger population's demographics.
Step-by-step explanation:
The information provided suggests that training will be geared towards multiple specific groups, varying in size and function. For example, a hypothetical set up involves enlisting 24 participants split into two groups of 12, indicating training is targeted at least towards these two groups. In a community swim team scenario, members are divided into three categories (advanced, intermediate, novice) with further subgroups based on their practice schedules, signifying training specifically designed for each subgroup's needs. Similarly, a video game developer is testing a new game on three different target market groups, which again points to the training being customized for specific group dynamics. Finally, consideration is given to finding a representative group of about 200 individuals that reflect a larger population's composition, illustrating that training can also be geared towards a broader demographic while maintaining specificity.