AACPS Statistical Analysis Sampling Methods

Front

What is the purpose of randomly selecting samples in statistical analysis?

Back

To reduce bias.

Front

What sampling method involves selecting every nth individual from a list?

Back

Systematic sampling.

Front

What is a simple random sample?

Back

A sampling method where each individual has an equal chance of being selected.

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What is convenience sampling?

Back

A sampling method where the sample is taken from a group that is easily accessible.

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What is stratified sampling?

Back

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

Front

Define bias in the context of sampling.

Back

Bias refers to systematic errors that lead to incorrect conclusions about a population.

Front

What is the difference between random sampling and systematic sampling?

Back

Random sampling selects individuals randomly, while systematic sampling selects individuals at regular intervals.

Front

What is voluntary response sampling?

Back

A sampling method where individuals choose to participate, often leading to biased results.

Front

Why is it important to reduce bias in sampling?

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To ensure that the sample accurately represents the population, leading to valid conclusions.

Front

What is a population in statistical terms?

Back

The entire group of individuals or instances about whom we hope to learn.