Final answer:
The question involves categorizing Role-Playing games released after 2000 by their sales figures into 'high', 'medium', or 'low' which is a statistical problem under Mathematics, typically covered in High School.
Step-by-step explanation:
The question at hand involves selecting a subset of Role-Playing games released after the year 2000 and labeling them based on their global sales. An appropriate way to approach this task would be to organize games into categories such as 'high', 'medium', and 'low' based on their sales figures, which should be above 15 million, between 1 and 15 million, and less than 1 million, respectively. This classification requires an understanding of data identification and categorizing, which falls under the subject of Mathematics, particularly statistics and probability.
For instance, if a game titled 'Epic Quest' released in 2001 sold 17 million copies worldwide, it would be labeled as 'high'. Another game 'Mystical Journey' released in 2005 with 7 million in sales would fall under the 'medium' category. Lastly, a game named 'Adventure Saga' with sales of 800,000 since its 2010 release would be considered 'low' sales.
This kind of statistical analysis, including the collection, classification, and interpretation of data, is a fundamental aspect of Mathematics that is commonly introduced in High School curriculum.