Australian Water Information Dictionary

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Q

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Denotes one of a series of threshold values that divides a set of ordered data into groups with an equal number of data points in each. The terms tercile, quartile, quintile, decile and percentile refer to quantiles that divide the distribution of data into 3, 4, 5, 10 and 100 equal parts, respectively.

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An interval of geological time from about 1.8 million years ago to the present.

Source: USGS publication: Division of geological time - Major Chronostratigraphic and geochronologic units

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Queensland Water Commission

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