statisticstəˈtɪs tɪk

**statistic** (n)

- plural
- statistics

### English Definitions:

#### statistic (noun)

a datum that can be represented numerically

#### statistic (Noun)

A single item in a statistical study.

#### statistic (Noun)

A quantity calculated from the data in a sample, which characterises an important aspect in the sample (such as mean or standard deviation).

#### statistic (Noun)

A person, or personal event, reduced to being an item of statistical information.

#### Statistic

A statistic is a single measure of some attribute of a sample. It is calculated by applying a function to the values of the items of the sample, which are known together as a set of data. More formally, statistical theory defines a statistic as a function of a sample where the function itself is independent of the sample's distribution; that is, the function can be stated before realization of the data. The term statistic is used both for the function and for the value of the function on a given sample. A statistic is distinct from a statistical parameter, which is not computable because often the population is much too large to examine and measure all its items. However, a statistic, when used to estimate a population parameter, is called an estimator. For instance, the sample mean is a statistic that estimates the population mean, which is a parameter. When a statistic is being used for a specific purpose, it may be referred to by a name indicating its purpose: in descriptive statistics, a descriptive statistic is used to describe the data; in estimation theory, an estimator is used to estimate a parameter of the distribution; in statistical hypothesis testing, a test statistic is used to test a hypothesis. However, a single statistic can be used for multiple purposes – for example the sample mean can be used to describe a data set, to estimate the population mean, or to test a hypotheses.

#### Statistic

A statistic (singular) or sample statistic is any quantity computed from values in a sample which is considered for a statistical purpose. Statistical purposes include estimating a population parameter, describing a sample, or evaluating a hypothesis. The average (or mean) of sample values is a statistic. The term statistic is used both for the function and for the value of the function on a given sample. When a statistic is being used for a specific purpose, it may be referred to by a name indicating its purpose. When a statistic is used for estimating a population parameter, the statistic is called an estimator. A population parameter is any characteristic of a population under study, but when it is not feasible to directly measure the value of a population parameter, statistical methods are used to infer the likely value of the parameter on the basis of a statistic computed from a sample taken from the population. For example, the sample mean is an unbiased estimator of the population mean. This means that the expected value of the sample mean equals the true population mean.A descriptive statistic is used to summarize the sample data. A test statistic is used in statistical hypothesis testing. Note that a single statistic can be used for multiple purposes – for example the sample mean can be used to estimate the population mean, to describe a sample data set, or to test a hypothesis.

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"statistic." *Kamus.net.* STANDS4 LLC, 2024. Web. 21 May 2024. <https://www.kamus.net/english/statistic>.

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