Match Each of the Following E-R Structures with Its Relational

question 54

Multiple Choice

Match each of the following E-R structures with its relational representation.
-Create a relation with a composite primary key using the primary keys of the related entities,plus any nonkey attributes of the relationship or associative entity.

• A)regular entity
• B)weak entity
• C)binary or unary 1:1 relationship
• D)binary 1:N relationship
• E)binary or unary M:N relationship or associative entity
• F)binary or unary M:N relationship or associative entity with its own key

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Definitions:

Consumer Surplus

The difference between what consumers are willing to pay for a good or service versus what they actually pay.

Producer Surplus

The difference between what producers are willing to accept for a good versus what they actually receive, indicating economic benefit.

Export Sector

The segment of an economy's industry involved in producing goods or services for sale in foreign countries.

Consumer Surplus

The difference between the maximum price consumers are willing to pay and the market price they actually pay.