Probability Sampling Scenarios

Question 1

A university wants to study students’ study habits.
Researchers divide students into year levels (Freshmen, Sophomores, Juniors, Seniors) and then randomly select 50 students from each year level to participate in the survey.

Answer 1

Stratified Sampling

Question 2

A company wants employee feedback on a new work from home policy. They create a list of all 1,000 employees and use a random number generator to select 100 employees to take the survey.

Answer 2

Simple Random Sampling

Question 3

A researcher wants to understand shopping behaviors in a mall. They decide to survey every 5th customer entering the mall throughout the day.

Answer 3

Systematic Sampling

Question 4

A national education survey is conducted to assess teaching effectiveness. Out of all the schools from the country, one of those selected schools participate in the study.

Answer 4

Cluster Sampling