Chelsea wants to determine the number of people in her school who read news reports on the Internet daily. She asks five people in her language arts class. Which improvements could Chelsea make to her sample to increase the validity of the results? Select three options.

A larger sample is more likely to represent the whole school than asking only five people. Including students from different grade levels helps capture differences among ages. Choosing every fourth student across all language arts classes also spreads the sample across more students instead of relying on one class; a predetermined answer would bias the results.

AI-written and checked against the verified answer.