Math 3 Sampling Methods

Interview every 10th student who enters the school in the morning.

• simple random

• voluntary response

• systematic

• convenience

Marianne wanted to know students' opinion on the new schedule at school. She survey's the first 30 students who come into her class.

• Convenience Sampling

• Systematic Random Sampling

• Simple Random Sampling

• Volunteer response

Disneyland often surveys its guests as they exit a restaurant during their visit. The surveyor stands at the restaurant exit, counts the number of people leaving, and surveys every 25th guest.
This is a form of:

• Simple Random Sample
• Stratified Random Sample
• Voluntary Response
• Systematic Random Sampling

An independent research company wants to go door to door to survey people in the city of Fontana. The company decides to number all blocks within the city limit, randomly choose 1 block and survey all households on that block.

This is an example of:

• Simple Random Sample

• Stratified Random Sample

• Cluster Random Sample

• Systematic Random Sampling

You want to determine whether students in your school like the new design of the school’s website.  Identify the type of sample described.

  You randomly select two students from each classroom. 

• Self-selected Sample

• Systematic Sample

• Stratified Sample

• Cluster Sample

• Convenience Sample

You want to determine whether the people in your neighborhood like the new social medial website that provides neighborhood updates.  Identify the type of sample described.

You ask all of the neighbors on the block where you reside. 

• Self-selected Sample

• Systematic Sample

• Stratified Sample

• Cluster Sample

• Convenience Sample

A researcher randomly assigned students to two groups. One group was assigned to watch a violent television program while the other group watched a nonviolent program. The student's behavior was then recorded for incidences of aggressive behavior. Which research method is most appropriate?

• experimental

• census

• sample survey

• observational study

Jane Goodall lived among wild chimpanzees intermittently for decades, studying their social and family systems while keeping her interaction with the chimpanzees to a minimum. Which research method is most appropriate?

• biased study

• census

• experiment

• observational study

To test the effects of eating breakfast on test grades. I randomly select half of my students and feed them breakfast while giving the other half nothing to eat. I then give them all a test and compare the test grades of each group.

Is this an experiment or an observational study?

• Experiment

• Observational study

• Neither

• Both experiment and observational study.

A principal wants to know how teachers feel about changes to their schedule. He decides to ask a sample of 20 teachers. Classify each sampling method.

Randomly choose 2 teachers from each of the school’s 10 departments of various sizes.

• Simple Random

• Systematic

• Stratefied

• Cluster