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 at the school cafeteria on a particular day. Is your sample random? Explain
No, the sample is not random. The sample only includes students who buy hot lunch at the school cafeteria on a particular day, which means that it excludes all students who bring their own lunch or who do not eat lunch at school that day. This can introduce bias into the sample, as the opinions of those who do not buy hot lunch may differ from those who do. A random sample would include all students in the school and randomly select a subset of them to survey.
