When Transforming an ID-Dependent E-R Data Model Relationship into a Relational

question 59

Multiple Choice

When transforming an ID-dependent E-R data model relationship into a relational database design and the child entity is designed to use a surrogate key,then ________.

• A)the parent entity must also use a surrogate key
• B)the relationship remains an ID-dependent relationship
• C)the relationship changes to a non-ID-dependent relationship
• D)A and B
• E)A and C

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Definitions:

Test Statistic

A calculated value from sample data used to assess the viability of a hypothesis in a statistical test.

Degrees of Freedom

The count of distinct values or amounts that can be attributed to a statistical distribution while respecting all existing limitations.

Multinomial Experiment

An experiment that involves trials where each trial results in one outcome from a set of more than two possible outcomes.

Fixed Number of Trials

A specified, constant number of attempts or operations conducted in an experiment or process, typically used in statistical trials.