In the Relational Database Model,what Is a Person,place,thing,transaction or Event

question 62

Multiple Choice

In the relational database model,what is a person,place,thing,transaction or event about which information is stored?

• A)Entity
• B)Relationships
• C)Attribute
• D)Foreign key

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Definitions:

Unique Risk

Risk that affects a very limited number of assets, often referred to as "unsystematic risk" or "idiosyncratic risk."

Diversifiable Risk

The portion of an investment's risk that can be mitigated or eliminated through portfolio diversification.

Correlation Coefficient

A statistical measure that calculates the strength and direction of a linear relationship between two variables.

Covariance

A measure of how two variables move in relation to each other, used in finance to diversify portfolios and minimize risk.