Match the Following Terms with Their Definition

question 6

Short Answer

Match the following terms with their definition.
I.Primary key
II.Numeric key
III.Composite key
IV.Natural primary key
V.Foreign key
A.Identifies a record in another table
B.Represents an individual item,such as CustomerID
C.Unique identifier that is already a part of your data
D.Multiple fields used to identify each person or item
E.One field used to identify each person or item

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Definitions:

Income Elasticity

A measure of how the quantity demanded of a good or service changes in response to a change in consumer income.

Inferior Good

A type of good for which demand decreases when consumers' income increases, opposite to normal goods.

Perfectly Inelastic

Describes a situation where the demand for a good does not change in response to a change in price.

Price Elasticity

A measure of how much the quantity demanded of a good responds to a change in the price of that good, defined as the percentage change in quantity demanded divided by the percentage change in price.