Note: Your teacher will grade your responses to questions 18 and 19 to ensure that you receive proper credit for your answers.
You are surveying students to find out their opinion of the quality of food served in the school cafeteria. You decide to poll only those students who buy hot lunch on a particular day. Is your sample random? Explain.
No, the sample is not random because it only includes students who buy hot lunch on a particular day and excludes those who bring their own lunch or buy items from the a la carte menu. This could lead to a biased sample as the opinions of those who do not buy hot lunch may differ from those who do.
