Answer:
Biased.
Step-by-step explanation:
The survey is to find how many students prefer school-provided lunches and lunches from home. If you are asking students in the lunch line, you are asking students who are willing to buy lunch. Most likely, those five students will say they prefer school lunch. This is biased. However, if you were to ask many students upon entering the lunch room, this would be an unbiased survey.
