Question 20 • Math 7 B (M12 25/26 S2)
Sample 1 surveys every third person on each first-period class roster, so it includes students from different classes using a consistent selection method. Sample 2 surveys only students in Mr. Sanchez’s five honors math classes, which does not represent the whole student population because it leaves out students in other classes. Therefore, Sample 2 is biased.
AI-written and checked against the verified answer.