An Identifier Is a Candidate Key That Has Been Selected

question 41

True/False

An identifier is a candidate key that has been selected to be used as the unique characteristic for an entity type.

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Definitions:

Utility Function

A mathematical model in economics that maps a consumer's preferences for various products and services to a numerical representation of utility or satisfaction.

Engel Curve

A graphical representation that shows how household spending on a particular good or service varies with income.

Demand Curve

A graphical representation of the relationship between the price of a good and the quantity demanded, typically downward sloping.

Giffen Good

A type of inferior good for which demand increases as its price increases, contrary to the typical law of demand.