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An Arithmetic Column Is a Column That Does Not Exist

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An arithmetic column is a column that does not exist in the database but can be computed using data in existing columns.​


Definitions:

Degrees of Freedom

The number of independent values in a statistical calculation that are free to vary.

Null Hypothesis

A statement used in statistics that proposes there is no significant difference or effect, serving as the starting point for testing.

Significance Level

A threshold in hypothesis testing that determines whether a result is statistically significant; often denoted by alpha (α).

Partitioning

The process of allocating the total sum of squares and degrees of freedom to the various components.

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