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.

Answer 1

No, the sample is not random. The selection of students is based on a specific criterion (buying hot lunch on a particular day) which may not represent the entire population of the school. Therefore, the sample is biased and may not accurately reflect the opinion of all students regarding the quality of food served in the school cafeteria. A random sample, on the other hand, would be selected from the entire population, ensuring that every member of the population has an equal chance of being selected.