Lesson 4.1 Sampling and Surveys GOOD

Front

What is a population in the context of sampling?

Back

A population refers to the entire group of individuals or instances about whom we hope to learn.

Front

What is a sample?

Back

A sample is a subset of the population selected for observation and analysis.

Front

What is convenience sampling?

Back

Convenience sampling is a non-random sampling method where the sample is taken from a group that is easily accessible.

Front

What is random sampling?

Back

Random sampling is a method where each member of the population has an equal chance of being selected.

Front

What is biased sampling?

Back

Biased sampling occurs when certain members of the population are more likely to be selected than others, leading to skewed results.

Front

Why is random selection important in sampling?

Back

Random selection is important because it helps to reduce bias and ensures that the sample is representative of the population.

Front

What is a survey?

Back

A survey is a method of collecting data by asking questions to a group of people.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities, while quantitative data involves numerical values and measurements.

Front

What is a sampling frame?

Back

A sampling frame is a list or database from which a sample is drawn.

Front

What is stratified sampling?

Back

Stratified sampling is a method where the population is divided into subgroups (strata) and samples are taken from each stratum.