COGNITIVE ASSESSMENT Which Statement Is Not a Recognized Guideline for Designing

question 8

Multiple Choice

COGNITIVE ASSESSMENT Which statement is not a recognized guideline for designing a database?

• A) Each table or file should contain data about one subject.
• B) Create fields for every piece of data you might need, such as fields for Date and Age.
• C) Every record needs a primary key.
• D) Use separate fields for logically distinct items, such as First Name and Last Name.

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Definitions:

Crime Rates

The number of crimes committed per unit of population within a given time period, usually expressed per 100,000 people.

Multiple Correlation Coefficient

A statistical measure that represents the strength of the relationship between multiple independent variables and one dependent variable.

Predicted Values

The values estimated by a statistical model or equation based on the inputs of explanatory variables.

Explanatory Variables

Variables in a statistical model that are used to explain changes or variations in a response variable.