Sampling Methods

A college basketball team held a promotion at one of its games in which every twentieth person who entered the arena won a free basketball.  What kind of sampling method was used?

• Stratified Random Sampling

• Cluster Random Sampling

• Systematic Random Sampling

• Voluntary response sampling

As  students are leaving the university library, a researcher questions 45 students  about their drinking habits. The sampling technique that was used was

• Sample of Convenience

• Systematic random sampling

• Cluster random sampling

• Stratified sampling

You are doing a study to determine the opinions of students of your school regarding stem cell research. You assign each student a number and generate random numbers.  You then question each student whose number is randomly selected. The sampling method that was used was

• Sample of Convenience

• Simple Random Sampling

• Cluster sampling

• Systematic Sampling

You are doing a study to determine the opinions of students of your school regarding vaccines.  You decide to ask  and record the responses of everyone in your biology class. The sampling method used was

• Sample of Convenience

• Simple Random Sampling

• Cluster Sampling

• Stratified sampling

After a hurricane, a disaster area is divided into 200 equal grids.  Thirty of the grids are selected and every occupied household in the grid is interviewed to help determine what food and supplies that the residents need the most. The sampling method used was

• Sample of Convenience

• Stratified sampling

• Cluster Sampling

• Systematic sampling

Twenty-five students are randomly selected from each grade level at a high school and surveyed about their study habits. The sampling method used was

• Stratified sampling

• Sample of convenience

• Cluster sampling

• Voluntary response

Police at a sobriety checkpoint pull over every fifth car to determine if the driver is sober.  The sampling method used was  

• Stratified sampling

• Systematic sampling

• Voluntary response

• None of these

Thirty children attend a birthday party.  Each child writes his/her name on a piece of paper and puts the paper into a hat.  At the end of the party, the clown reaches in the hat and pulls out 5 slips of paper,  which tells the clown who wins the five prizes.  The sampling method used was

• Voluntary response

• Simple random sample

• Stratified sampling

• Cluster sampling

Every 3rd day, a computer network administrator analyzes the company’s network logs to check for signs of computer virus.  The sampling method used was  

• Voluntary response

• Simple random sample

• Systematic sampling

• Cluster sampling

A professor asks the first 5 students who arrive to class to participate in a research study about young adult sleep patterns. What type of sampling method is this?

• Simple Random
  Sampling

• Stratified Random Sampling

• Convenience Sampling

• Cluster Random Sampling