Carla has a list of all 720 students in her middle school. She writes the name of each student
on a slip of paper and puts each slip in a box. Then she pulls 30 names from the box to
decide who she will survey about the upcoming school election.
2 How many students are in Carla’s sample?
How many students are in the population?
3 What are different attributes of students or different groups of students that should be
represented in the sample?
1. Carla's sample size is 30 students. The population size is 720 students in the middle school.
2. Different attributes or groups of students that should be represented in the sample could include:
- Gender representation (equal representation of male and female students)
- Grade levels (representative sample from each grade level)
- Socio-economic status (including students from different socio-economic backgrounds)
- Academic performance (including students of different academic levels)
- Extracurricular involvement (including students involved in different activities)
- Ethic and cultural diversity (representing students from different ethnic backgrounds)