Rodell wants to find the favorite gaming app among the students at his school. He decides to poll the thirty students on his football team and the fifteen students on his basketball team to gather the data. What is wrong with Rodell’s method for collecting his data?

Rodell wants to learn about all students at his school, but he only surveys students on two sports teams. Athletes may have different gaming app preferences from students who are not athletes, so this sample may not represent the whole school. The main problem is the lack of representation of nonathletes, making A the best choice.

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