Sampling Techniques

49, 34, and 48 students are selected from the Sophomore, Junior, and Senior classes with 496, 348, and 481 students respectively.

• Random
• Convenience
• Stratified
• Cluster
• Systematic

A sample consists of every 49th student from a group of 496 students.

• Random
• Convenience
• Stratified
• Cluster
• Systematic

A market researcher selects 500 drivers under 30 years of age and 500 drivers over 30 years of age

• Random
• Convenience
• Stratified
• Cluster
• Systematic

A market researcher selects 500 people from each of 10 cities.

• Random
• Convenience
• Stratified
• Cluster
• Systematic

A tax auditor selects every 1000th income tax return that is received.

• Random
• Convenience
• Stratified
• Cluster
• Systematic

A pollster uses a computer to generate 500 random numbers, then interviews the voters corresponding to those numbers.

• Random
• Convenience
• Stratified
• Cluster
• Systematic

To avoid working late, a quality control analyst simply inspects the first 100 items produced in a day.

• Random
• Convenience
• Stratified
• Cluster
• Systematic

An education researcher randomly selects 48 middle schools and interviews all the teachers at each school.

• Random
• Convenience
• Stratified
• Cluster
• Systematic

A researcher interviews 19 work colleagues who work in his building.

• Random
• Convenience
• Stratified
• Cluster
• Systematic

The name of each contestant is written on a separate card, the cards are placed in a bag, and three names are picked from the bag.

• Random
• Convenience
• Stratified
• Cluster
• Systematic