3.1-3.3 Review

Front

What is a sample in statistics?

Back

A sample is a subset of individuals selected from a larger population, used to make inferences about the population.

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What is a population in statistics?

Back

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

Front

What is convenience sampling?

Back

Convenience sampling is a non-probability sampling technique where subjects are selected because of their convenient accessibility and proximity to the researcher.

Front

What is the difference between an observational study and an experiment?

Back

An observational study observes subjects without manipulating any variables, while an experiment imposes treatment on subjects to observe effects.

Front

What is response bias?

Back

Response bias occurs when participants provide inaccurate or false responses, often due to the way questions are asked.

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What is voluntary response sampling?

Back

Voluntary response sampling is a type of sampling where individuals choose to participate, often leading to biased results.

Front

What is nonresponse bias?

Back

Nonresponse bias occurs when a significant number of individuals selected for a sample do not respond, potentially skewing results.

Front

What is the purpose of random sampling?

Back

Random sampling aims to select a representative group from a population, minimizing bias and ensuring that every individual has an equal chance of being chosen.

Front

What is an observational study?

Back

An observational study is a research method where the researcher observes and records behavior without manipulating any variables.

Front

What is an experiment in research?

Back

An experiment is a study in which the researcher manipulates one or more variables to determine their effect on a dependent variable.