Median

Median

The middle value in a population distribution, above and below which lie an equal number of individual values; midpoint.

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Part of Speech: noun
Synonym(s):
Blossary:
Industry/Domain: Pollution control
Category: Air pollution
Company: ARB
Product:
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Related terms

median

Pollution control; Air pollution

The middle value in a population distribution, above and below which lie an equal number of individual values; midpoint.

median

Weather; Meteorology

One of several measures of central tendency. 1) Pertaining to a series of numbers, the median is the middle term when the numbers are arranged in algebraic order. If the number of ...

median

Natural environment; Coral reefs

A statistical measure of central tendency. The middle-most value in a set of observations with an equal number of observations lying above and below the median value.

median

Biotechnology; Genetic engineering

In a set of measurements, the central value above and below which there are an equal number of measurements.

median

Mathematics; Calculus

The middle number in the sequence of numbers listed from smallest to largest if there is an odd number of numbers.

median

Psychology; General psychology

The score in a distribution above and below which lie 50 percent of the other scores; a measure of central tendency.

lead

Pollution control; Air pollution

A gray-white metal that is soft, malleable, ductile, and resistant to corrosion. Sources of lead resulting in concentrations in the air include industrial sources and crustal ...

nonattainment area

Pollution control; Air pollution

A geographic area identified by the U. S. EPA and / or CARB as not meeting either NAAQS or CAAQS standards for a given pollutant. For more information, please view our designated ...

air toxics

Pollution control; Air pollution

A generic term referring to a harmful chemical or group of chemicals in the air. Substances that are especially harmful to health, such as those considered under U. S. EPA's ...

nitrogen oxides

Pollution control; Air pollution

A general term pertaining to compounds of nitric oxide (NO), nitrogen dioxide (NO 2 ) and other oxides of nitrogen. Nitrogen oxides are typically created during combustion ...