# Summary statistics

**summary statisticSummarizationdata summarizationstatistical summarysummary value**

In descriptive statistics, summary statistics are used to summarize a set of observations, in order to communicate the largest amount of information as simply as possible.wikipedia

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### Descriptive statistics

**descriptivedescriptive statisticstatistics**

In descriptive statistics, summary statistics are used to summarize a set of observations, in order to communicate the largest amount of information as simply as possible.

A descriptive statistic (in the count noun sense) is a summary statistic that quantitatively describes or summarizes features of a collection of information, while descriptive statistics in the mass noun sense is the process of using and analyzing those statistics.

### Seven-number summary

**Bowley's seven-figure summaryseven-figure summary**

A common collection of order statistics used as summary statistics are the five-number summary, sometimes extended to a seven-number summary, and the associated box plot.

In descriptive statistics, the seven-number summary is a collection of seven summary statistics, and is an extension of the five-number summary.

### Median

**averagesample medianmedian-unbiased estimator**

Common measures of location, or central tendency, are the arithmetic mean, median, mode, and interquartile mean.

The median is a popular summary statistic used in descriptive statistics, since it is simple to understand and easy to calculate, while also giving a measure that is more robust in the presence of outlier values than is the mean.

### Arithmetic mean

**meanaveragearithmetic**

Common measures of location, or central tendency, are the arithmetic mean, median, mode, and interquartile mean. a measure of location, or central tendency, such as the arithmetic mean

Summary statistics

### Statistical dispersion

**dispersionvariabilityspread**

a measure of statistical dispersion like the standard deviation Common measures of statistical dispersion are the standard deviation, variance, range, interquartile range, absolute deviation, mean absolute difference and the distance standard deviation.

Summary statistics

### Mode (statistics)

**modemodalmodes**

Common measures of location, or central tendency, are the arithmetic mean, median, mode, and interquartile mean.

Summary statistics

### L-moment

**probability weighted moments**

The Gini coefficient was originally developed to measure income inequality and is equivalent to one of the L-moments.

1) As summary statistics for data.

### Percentile

**percentiles50th percentile85th percentile speed**

A simple summary of a dataset is sometimes given by quoting particular order statistics as approximations to selected percentiles of a distribution.

Summary statistics

### Observation

**observerobservationsobserved**

In descriptive statistics, summary statistics are used to summarize a set of observations, in order to communicate the largest amount of information as simply as possible.

### Order statistic

**order statisticsorderedth-smallest of items**

A common collection of order statistics used as summary statistics are the five-number summary, sometimes extended to a seven-number summary, and the associated box plot. A simple summary of a dataset is sometimes given by quoting particular order statistics as approximations to selected percentiles of a distribution.

### Five-number summary

**five-number summaries**

A common collection of order statistics used as summary statistics are the five-number summary, sometimes extended to a seven-number summary, and the associated box plot.

### Box plot

**boxplotbox and whisker plotadjusted boxplots**

A common collection of order statistics used as summary statistics are the five-number summary, sometimes extended to a seven-number summary, and the associated box plot.

### Analysis of variance

**ANOVAanalysis of variance (ANOVA)corrected the means**

Entries in an analysis of variance table can also be regarded as summary statistics.

### Central tendency

**Localitycentral locationcentral point**

Common measures of location, or central tendency, are the arithmetic mean, median, mode, and interquartile mean. a measure of location, or central tendency, such as the arithmetic mean

### Standard deviation

**standard deviationssample standard deviationsigma**

a measure of statistical dispersion like the standard deviation Common measures of statistical dispersion are the standard deviation, variance, range, interquartile range, absolute deviation, mean absolute difference and the distance standard deviation.

### Skewness

**skewedskewskewed distribution**

a measure of the shape of the distribution like skewness or kurtosis

### Kurtosis

**excess kurtosisleptokurticplatykurtic**

a measure of the shape of the distribution like skewness or kurtosis

### Correlation and dependence

**correlationcorrelatedcorrelate**

if more than one variable is measured, a measure of statistical dependence such as a correlation coefficient

### Pearson correlation coefficient

**correlation coefficientcorrelationPearson correlation**

if more than one variable is measured, a measure of statistical dependence such as a correlation coefficient

### Interquartile mean

**interquartile**

Common measures of location, or central tendency, are the arithmetic mean, median, mode, and interquartile mean.

### Variance

**sample variancepopulation variancevariability**

Common measures of statistical dispersion are the standard deviation, variance, range, interquartile range, absolute deviation, mean absolute difference and the distance standard deviation.

### Range (statistics)

**rangerangingsample range**

Common measures of statistical dispersion are the standard deviation, variance, range, interquartile range, absolute deviation, mean absolute difference and the distance standard deviation.

### Interquartile range

**inter-quartile rangebelowinterquartile**

Common measures of statistical dispersion are the standard deviation, variance, range, interquartile range, absolute deviation, mean absolute difference and the distance standard deviation.

### Deviation (statistics)

**deviationabsolute deviationdeviations**

### Mean absolute difference

**MDMean differenceaverage absolute difference**