Alg. 2 Final Exam Review Pt. 2 (24-25)

Front

What is a parameter in statistics?

Back

A parameter is a numerical characteristic or measure obtained by using all the data values from a specific population.

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What is an experiment in statistics?

Back

An experiment is a study in which a treatment is applied to a group and the effects are observed, allowing for cause-and-effect conclusions.

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What is cluster sampling?

Back

Cluster sampling is a sampling method where the population is divided into clusters, and entire clusters are randomly selected for the sample.

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What is systematic sampling?

Back

Systematic sampling is a method where you select every nth individual from a list or sequence.

Front

What is the Empirical Rule in statistics?

Back

The Empirical Rule states that for a normal distribution, approximately 68% of the data falls within one standard deviation of the mean.

Front

What does a mean of 76 and a standard deviation of 5 indicate about a data set?

Back

It indicates that the average value is 76, and most data points fall within 5 units of this mean.

Front

What is the difference between a sample and a population?

Back

A sample is a subset of a population, used to represent the larger group.

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What is convenience sampling?

Back

Convenience sampling is a non-probability sampling method where samples are taken from a group that is easily accessible.

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What is self-selected sampling?

Back

Self-selected sampling occurs when individuals volunteer to participate in a study, often leading to bias.

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What is the significance of a standard deviation in a data set?

Back

Standard deviation measures the amount of variation or dispersion in a set of values.