Final answer:
Descriptive statistics are used to summarize and describe the main features of a dataset.
Step-by-step explanation:
The question is asking about the classification of the statement '35% of all college students have two or more active credit cards', and which option best describes it. The correct option is a. descriptive statistic. Descriptive statistics are used to summarize and describe the main features of a dataset. In this case, the statistic provided is a percentage that describes the proportion of college students with multiple active credit cards.