In a study to determine the percentage of college students who read the newspaper, which of the following is the best sample?

every 20th student who walks by the student center

the first 50 students who arrive at a movie

the freshman at a particular school

the students in a computer class

Every 20th student who walks by the student center is the correct answer.

Explanation:

Option B is not correct, unless the newspaper contains relevant information about the movies; however, it is possible to get this information from other sources.

C is also incorrect because the freshman at a particular school are juts a percentage of the total population and a limited group.

Letter D is also incorrect because people in a computer class don't necessarily read the paper.

However, option A is the correct answer since it is a controlled environment and it can easily be analyzed.