Leah wants to estimate the number of students in her eighth-grade class whose favorite color is green. She wants to survey 25 students who are likely to be representative of her entire eighth‑grade class.
From which of the following populations should Leah randomly select her sample of 25 students?
1) Students at a basketball game
2) Students at an eighth-grade assembly
3) Students arriving at her middle school one morning
4) Students in her eighth-grade social studies class who are wearing green