Question

a math teacher wants to find out the average number of hours his students spend working on their math homework for his class each week. which group would best represent a sample of the population? the first 30 students who enter the school building one morning 30 students selected from the lunchroom 30 students selected from his class rosters 30 students who stay after school for football practice

Explanation:

The population is the math - teacher's students. To get a representative sample, we should select from the teacher's class. The first option includes students who may not be in the teacher's class. The second option includes students from the lunchroom who may not be in the teacher's class. The fourth option includes students who stay for football practice and may not be in the teacher's class. Selecting 30 students from the class rosters ensures they are from the population of interest.

Answer:

30 students selected from his class rosters