Sally wants to know what percentage of Canadian university students are receiving financial aid their first year in university. Sally attends a small university with a large percentage of students who commute to campus every day. Sally stands outside of the residence dining hall one weekday evening and hands out surveys to every third person entering the hall for dinner. Sally's data will be invalid because ________.

Question

Quizplus · Accepted Answer

Sally's data will be invalid because she did not use a representative sample. By only surveying students entering the residence dining hall, she is likely missing a large portion of the student population, particularly those who commute and may not use the dining hall.

Sally Wants to Know What Percentage of Canadian University Students