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When Does a Functional Dependency Occur

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When does a functional dependency occur?


Definitions:

Data

Facts and statistics collected together for reference or analysis, often used as a basis for making decisions or drawing conclusions.

Median

The middle value of a dataset arranged in order of magnitude, or the mean of the two middle values if the set has an even number of observations.

Mean

The mean of a collection of numbers, determined by summing up the values and then dividing by the total count of these values.

Weighted Mean

An average where each datum has a weight that determines its importance, calculating a mean that considers the significance of individual values.

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