Different Sampling Methods

Identify the sampling method used in this situation. A teacher wants to know what percent of students read the chapter. He asks a few students in his class.

• Simple Random

• Stratified

• Cluster

• Convenience

Students at North River High School are assigned to home rooms with 25 students each. You randomly select 4 homerooms and gather data from each of the 100 students in these classes.

What type of sampling method was used?

• Simple Random

• Cluster

• Stratefied

• Systematic

Identify the sampling method used in this situation. 

A video store wants to know what PS3 games are most popular in the state. It surveys people that come into its store.

• Simple Random

• Systematic

• Stratified

• Convenience

What type of sampling is shown?

• Simple Random Sample

• Systematic Sample

• Cluster Sample

• Stratified Sample

The quality inspector takes every 125th component and checks it for defects. What kind of sample is this?

• Simple Random

• Convenience

• Stratified

• Systematic

• Cluster

A researcher asked every person wearing red who walked past the booth. What kind of sample is this?

• Simple Random

• Convenience

• Stratified

• Systematic

• Cluster

A researcher uses a random number generator to look up people on the electoral roll. What kind of sample is this?

• Simple Random

• Convenience

• Cluster

• Systematic

• Stratefied

A researcher visits 10 different workplaces at random and asks all the people at each workplace. What kind of sample?

• Simple Random

• Convenience

• Stratified

• Systematic

• Cluster

A housekeeper checks 3 rooms at random from each of the cleaners' areas of responsibility. What kind of sample?

• Simple Random

• Convenience

• Stratified

• Systematic

• Cluster

Simple random sampling is the easiest method of sampling, but it doesn't give a very good sample.

• True

• False