Final answer:
The variable that does NOT belong to the group is option C. The number of vehicles travelling in SRP in a given day.
Step-by-step explanation:
The variable that does NOT belong to the group is option C. The number of vehicles travelling in SRP in a given day.
All the other variables: A. The total population in a barangay, B. The number of new cases of influenza last month, and D. The synchronous attendance rate of students of a given class, are all related to population, health, or education. Option C, the number of vehicles travelling in SRP, is unrelated to these categories and therefore does not belong to the group.