Question

the school newspaper is taking a poll to find out how students in the school are going to vote in the upcoming election for class president. which group would best represent a sample population?
every tenth student staying after school.
every tenth student in the library at lunch.
every tenth student in the main hallway between class.
every tenth student in the student section at the school football game.

Explanation:

To find a representative sample population, the sample should be as random as possible among all students. Students staying after school, in the library at lunch, or in the student section at a football game may have specific characteristics or interests that don't represent the whole student body. However, students in the main hallway between classes are more likely to be a diverse mix of the entire student population.

Answer:

Every tenth student in the main hallway between class.