FACTOID # 14: North Carolina has a larger Native American population than North Dakota, South Dakota and Montana combined.

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Encyclopedia > Summary statistics

In descriptive statistics, summary statistics are used to summarize a set of observations, in order to communicate as much as possible as simply as possible. Statisticians commonly try to describe the observations in

1. a measure of location, or central tendency, such as the arithmetic mean, median, mode, or interquartile mean
2. a measure of statistical dispersion like the standard deviation, variance, range, or interquartile range, or absolute deviation.
3. a measure of the shape of the distribution like skewness or kurtosis

The Gini coefficient was originally developed to measure income inequality, but can be used for other purposes as well.

See also

Results from FactBites:

 Summary Statistics: Location & Spread (2909 words) The two important statistics that describe a single response are measures of location (typical value; the word location is a reference to the data's location on the number line) and spread (variability). It is not counted as one of the summary statistics even though it fits the definition ("a function solely of the data") perfectly. The mean and SD are a particularly appropriate summary for data whose histogram approximates a normal distribution (the bell-shaped curve).
 Access-Statistics (8640 words) Access Statistics summary report for two weeks - September 26, 1999 - October 9, 1999 --- complete report - 2398K. Access Statistics summary report for June 14 - June 21, 1997 --- complete report - 2579K. Access Statistics summary report for June 1 - June 13, 1997 --- complete report - 3081K.
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