Data Collection and Sampling Techniques

Front

What is a common method for collecting survey data?

Back

Online questionnaires

Front

Which of the following is a qualitative data collection method? Surveys, Interviews, Experiments, Observations

Back

Interviews

Front

What is the main purpose of using sampling techniques?

Back

To make inferences about a population efficiently.

Front

What is the difference between random sampling and stratified sampling?

Back

Random sampling selects individuals randomly from the entire population, while stratified sampling involves dividing the population into subgroups and sampling from each subgroup.

Front

Which data collection method uses questionnaires to gather information?

Back

Survey

Front

What type of sampling involves selecting every nth individual from a list?

Back

Systematic sampling

Front

How can you represent data visually to make it easier to understand?

Back

Use charts, graphs, and infographics to represent data visually.

Front

Which sampling technique ensures that subgroups are represented proportionally?

Back

Stratified sampling

Front

What type of data representation uses bars to show quantities?

Back

Bar chart

Front

How does a pie chart represent data?

Back

A pie chart represents data as slices of a circle, showing the proportion of each category relative to the total.