Statistical Terms and Concepts

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Absolute frequency

Back

The number of times a particular value for a variable has been observed to occur.

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Bar chart

Back

A graph where each column represents a categorical or discrete ungrouped numeric variable.

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Categorical variable

Back

Variables that describe a 'quality' or 'characteristic' of a data unit.

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Causation

Back

Indicates a causal relationship between two events.

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Census

Back

A study of every unit in a population.

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Classifications

Back

Used to collect and organize information into categories.

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Class interval

Back

A range of data values with a lower and upper limit.

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Cohort

Back

A group of data units sharing a common experience or characteristic.

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Comparability

Back

The ability to validly compare statistics over time or from different sources.

Front

Confidence interval

Back

A range in which it is estimated the true population value lies.