Which of the Following Is Not Something a Model of Database

question 33

Multiple Choice

Which of the following is not something a model of database structures must be able to describe?

• A)The entities or things in the domain of interest.
• B)The sequence that entities are accessed.
• C)The cardinalities that describe how many instances of one entity can be related to another.
• D)The attributes or characteristics of the entities and relationships.

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Definitions:

Population Variance

A measure of the spread or dispersion within a dataset, representing the average of squared deviations from the mean.

Level of Significance

The likelihood of incorrectly dismissing the null hypothesis in a statistical analysis, frequently represented by the symbol alpha.

Population Variance

A measure quantifying the degree to which individual points in a whole population differ from the population mean.

Hypotheses

Proposed explanations made on the basis of limited evidence as starting points for further investigation.