# frequency distribution

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Related to frequency distribution: relative frequency, relative frequency distribution

## distribution

[dis″trĭ-bu´shun]**1.**the specific location or arrangement of continuing or successive objects or events in space or time.

**2.**the extent of a ramifying structure such as an artery or nerve and its branches.

**3.**the geographical range of an organism or disease.

**frequency distribution**in statistics, a mathematical function that describes the distribution of measurements on a scale for a specific population.

**normal distribution**a symmetrical distribution of scores with the majority concentrated around the mean; for example, that representing a large number of independent random events. It is in the shape of a bell-shaped curve. Called also gaussian distribution. See illustration.

**probability distribution**a mathematical function that assigns to each measurable event in a sample group the probability that the event will occur.

Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

## fre·quen·cy dis·tri·bu·tion

a statistical description of raw data in terms of the number or frequency of items characterized by each of a series or range of values of a continuous variable.

Farlex Partner Medical Dictionary © Farlex 2012

## frequency distribution

A table or histogram showing the number of times each value of a particular variable occurs in a sample.Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

## frequency distribution

an arrangement of statistical data in order of the frequency of each size of the variable. For example, the numbers 2,3,5,3,4,2,1,3,4 would have the frequency distribution shown in Fig. 166. Data from a large sample often produces a NORMAL DISTRIBUTION CURVE.Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

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