# Interval estimation

## Interval bounded by an upper and a lower limit statistics / From Wikipedia, the free encyclopedia

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In statistics, **interval estimation** is the use of sample data to estimate an *interval* of possible values of a parameter of interest. This is in contrast to point estimation, which gives a single value.^{[1]}

The most prevalent forms of interval estimation are *confidence intervals* (a frequentist method) and *credible intervals* (a Bayesian method).^{[2]} Less common forms include *likelihood intervals,* *fiducial intervals,* *tolerance intervals,* and *prediction intervals*. For a non-statistical method, interval estimates can be deduced from fuzzy logic.