The Entity Integrity Rule States That

question 75

Multiple Choice

The entity integrity rule states that:

• A) no primary key attribute can be null.
• B) referential integrity must be maintained across all entities.
• C) each entity must have a primary key.
• D) a primary key must have only one attribute.

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Definitions:

Random Sample

A sample drawn in such a way that each member of the population has an equal chance of being included.

Blue Jelly Beans

A fictional or whimsical reference, typically used to illustrate statistical concepts or randomness in experiments.

Candy Company

A business entity that manufactures and sells confectionery products.

Sampling Distribution

The probability distribution of a given statistic based on a random sample, used to infer properties of the population.