Sampling Techniques

A researcher wants to understand the dietary habits of people in a city. They randomly select 100 households from the city's population directory and survey all the members in each selected household. What sampling technique is being used?

• Simple Random Sampling

• Systematic Sampling

• Convenience Sampling

• Stratified Random Sampling

A company wants to test the effectiveness of a new advertisement. They invite customers who visit their website to voluntarily participate in an online survey about their advertising preferences. What sampling technique is being used?

• Quota Sampling

• Convenience Sampling

• Purposive Sampling

• Stratified Random Sampling

A city council wants to estimate the average household income of its residents. They randomly select five neighborhoods from the city and survey all the households within each selected neighborhood. What sampling technique is being used?

• Simple Random Sampling

• Systematic Sampling

• Cluster Sampling

• Convenience Sampling

A researcher wants to understand the opinions of college students about online learning. They randomly select three colleges from a list of all colleges in the region, and then randomly select 50 students from each selected college. What sampling technique is being used?

• Quota Sampling

• Simple Random Sampling

• Purposive Sampling

• Cluster Sampling

A market researcher wants to conduct a focus group to gather insights about consumer preferences for a new product. They purposefully select individuals who are known early adopters of new technology to participate in the focus group. What sampling technique is being used?

• Convenience Sampling

• Snowball Sampling

• Stratified Random Sampling

• Purposive Sampling

A researcher wants to study the effects of a new teaching method on student performance. They randomly select two schools from a list of all schools in the district and include all students in the selected schools as participants. What sampling technique is being used?

• Snowball Sampling

• Convenience Sampling

• Simple Random Sampling

• Cluster Sampling

A survey company wants to gather opinions on political candidates. They randomly select registered voters from a database and contact them by phone to conduct interviews. What sampling technique is being used?

• Stratified Random Sampling

• Convenience Sampling

• Systematic Sampling

• Simple Random Sampling

A researcher wants to study the effects of a new medication on patients with a specific condition. They select 50 patients from a hospital's patient records who meet the specific criteria. What sampling technique is being used?

• Convenience Sampling

• Quota Sampling

• Snowball Sampling

• Purposive Sampling

A city wants to estimate the average commuting time of its residents. They divide the city into zones based on geographical areas and randomly select households within each zone to participate in a survey. What sampling technique is being used?

• Simple Random Sampling

• Stratified Random Sampling

• Cluster Sampling

• Systematic Sampling

A researcher wants to understand the experiences of survivors of a natural disaster. They initially contact a few survivors and ask them to recommend other survivors they know who are willing to share their experiences. What sampling technique is being used?

• Convenience Sampling

• Simple Random Sampling

• Snowball Sampling

• Quota Sampling