A Candidate Key Is an Attribute, or Combination of Attributes

question 31

True/False

A candidate key is an attribute, or combination of attributes, that uniquely identifies a row in a relation.

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Definitions:

Expected Income

The weighted average of all possible income outcomes, where the weights are the probabilities of each outcome occurring.

Probability

A measure of the likelihood of a particular event or outcome, expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

Expected Utility

A theory in economics that calculates the utility expected from a risky or uncertain choice, aiming to maximize satisfaction.

Risk-averse

A characteristic of individuals who prefer to avoid taking risks and are likely to choose options that minimize uncertainty.