# Interval (disambiguation)

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*This disambiguation page lists articles associated with the same or a similar title.*

- Interval (music):
*Add brief definition or description* - Interval (order): The elements which lie between two given members of a partially ordered set.
^{[e]} - Confidence interval: the range of a random variable, such as the mean of a sample, that — with a specified probability — contains the true value for the population.
^{[e]} - QT interval: In cardiology and the electrocardiogram, the time between the start of the Q wave and the end of the T wave.
^{[e]} - Open interval: A subset of the real line consisting of all numbers between (but not including) two given numbers.
^{[e]} - Closed interval: A subset of the real line consisting of all numbers between (and including) two given numbers.
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