For Any Relation R,if,for Every Valid Instance of A,that Value

question 125

Multiple Choice

For any relation R,if,for every valid instance of A,that value of A uniquely determines the value of B:

• A)then a primary dependency exists in the relation
• B)then A is said to be functionally dependent on B
• C)then B is said to be functionally dependent on A
• D)then A and B are candidate keys for the relation

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Definitions:

Income Effect

How an alteration in the income of an individual or an economy influences the demand for a specific good or service.

Legal Hourly Minimum Wage

The lowest hourly pay that employers are legally allowed to pay their workers, as mandated by government law.

Secondary Labor Market

Employment sectors characterized by low pay, low job security, and poor working conditions, often distinguished from primary sectors which offer better employment conditions.

Primary Labor Market

Refers to high-skilled, high-paying jobs that usually require a higher level of education or training, often offering benefits and job security.