In a Relational Database,tables in Which No Key Field Is

question 48

Multiple Choice

In a relational database,tables in which no key field is allowed to determine the values of any nonkey field are said to be

• A) unnormalized.
• B) in the third normal form.
• C) in the first normal form.
• D) in the second normal form.

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Definitions:

Least Squares Regression Line

A straight line that best fits the data points in a scatter plot by minimizing the sum of the squares of the vertical distances (residues) of the points from the line.

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A term often used in statistics and research to describe how two variables change relative to each other.

Vertical Spread

A trading strategy using options that involves buying and selling options of the same underlying security, same expiration date, but different strike prices.

Regression Line

A line of best fit through a dataset, used in regression analysis to model the relationship between a dependent variable and one or more independent variables.