Final answer:
The comparative function takes place in situations that are ambiguous and do not have a clear choice. It involves comparing two or more options or groups to make a decision.
Step-by-step explanation:
The comparative function takes place in situations that are ambiguous and do not have a clear choice. It involves comparing two or more options or groups to make a decision. For example, studies may compare various diet and exercise programs or politicians may compare the proportion of individuals from different income brackets who might vote for them. Students may also be interested in comparing the effectiveness of SAT or GRE preparatory courses.