A Value of 999-999-9999 for a U

question 22

True/False

A value of 999-999-9999 for a U.S. phone number is an example of dirty data for BI purpose.

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Definitions:

Inherent Zero

A zero point that indicates an absence of the quantity under measurement, giving a true zero value meaning in the context.

Ratio Scale

A scale of measurement that has a meaningful zero value and allows for comparisons of absolute magnitudes and the computation of ratios.

Measurement

The process or the result of quantifying the characteristics or properties of something, usually by comparing it to a standard.

Defined

Clearly specified or identified.