frequency distribution

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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.

Normal distribution. The approximate percentage of the area (or frequency) lying under the curve between standard deviations is indicated. From Dorland's, 2000.

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

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

Fig. 166 Frequency distribution . A distribution based on 9 numbers.

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

References in periodicals archive ?

A consistency coefficient (e.g., [r.sub.xx']) for each state (e.g., New Mexico) can then be generated using equation (1) and the state's observed frequency table (e.g., Table 2).

Selecting field experiment locations with archival data

In this study, the HLA haplotype frequency tables of the Caucasian population (2007) and the European-Caucasian population (2011) were used in this study to determine all potential high-resolution HLA genotypes.

Computational Approaches to Facilitate Epitope-Based HLA Matching in Solid Organ Transplantation

Table 3.3: Frequency table of the respondents in terms of political powerlessness items.

Investigating the effect of political powerlessness on women's political participation (aged 18-65) in Bojnurd

For the present study, we created a new frequency table, shown in Appendix 1, by combining the results of all the studies.

The key characteristics of different types of employees: a summary of six studies

The class then worked together to develop a frequency table. Another exam took quiz scores from three mutually exclusive groups and demonstrated an ANOVA.

Reducing social work students' statistics anxiety

A sample frequency table provides a quick and simple summary of data based on how often particular data appear.

Chapter 24 Descriptive statistics

Responses were categorically organized into frequency tables and percentage of occurrence was calculated for each component.

Pre-pointe evaluation components used by dance schools

Our students enjoyed trying to solve a simple substitution cipher using frequency tables. In the English language, E is the letter that occurs most frequently.

Developing Mathematical Thinking Using Codes and Ciphers

The occurrence of different species or functional groups was recorded for each circle and frequency tables for each locality were prepared.

Coexistence of reef organisms in the Abrolhos Archipelago, Brazil

The revised list of Qumran sources, word frequency tables, and index were the care of K.

The Dictionary of Classical Hebrew, vol. 2

HLA haplotype frequency tables for different ethnic groups are available from a variety of sources.

Prenatal paternity testing: why, when, how?

Simple frequency tables were compiled for each question.

Sustained improvement of subjective quality of life in older community-dwelling people after treatment of urinary incontinence