A statistic is a number that can be computed from a sample. The mean of a sample is a statistic.
Conversely, the mean of a population is a parameter. A statistic is often used to estimate an unknown parameter.

Sta*tis"tic (?), Sta*tis"tic*al (?), a. [Cf. F. statistique.]

Of or pertaining to statistics; as, statistical knowledge, statistical tabulation.


© Webster 1913.

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