Population vs. Sample

Front

What is a population in statistics?

Back

A population is the entire group of individuals or items that we want to study or draw conclusions about.

Front

What is a sample in statistics?

Back

A sample is a subset of the population that is selected for the purpose of conducting a study.

Front

How do you identify the population in a survey?

Back

The population is identified as the entire group that the survey aims to understand or make conclusions about.

Front

What is the difference between a population and a sample?

Back

A population includes all members of a specified group, while a sample includes only a portion of that group.

Front

In the context of a survey, what does it mean to generalize results?

Back

To generalize results means to apply findings from a sample to the larger population.

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What is a representative sample?

Back

A representative sample accurately reflects the characteristics of the population from which it is drawn.

Front

Why is it important to have a large sample size?

Back

A larger sample size reduces the margin of error and increases the reliability of the results.

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What is sampling bias?

Back

Sampling bias occurs when the sample is not representative of the population, leading to skewed results.

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What is a convenience sample?

Back

A convenience sample is a type of non-probability sampling where the sample is taken from a group that is easily accessible.

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What is random sampling?

Back

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