A(n)________ Is One or More Columns of a Relation That

question 17

Short Answer

A(n)________ is one or more columns of a relation that is used to identify a row.

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Definitions:

Biased Sample

A sample that does not accurately represent the population from which it was drawn, usually due to prejudiced selection methods.

Representative Sample

A segment of a population that correctly embodies the traits of the entire population group.

Biased Population

A group in which certain characteristics are over- or underrepresented, leading to skewed or unrepresentative sample outcomes.

Statistically Significant Population

A population size or characteristic in which differences or effects observed are unlikely to be due to chance, typically determined through statistical tests.