A Occurs When There Is One Entity in Two 1:M

question 81

Multiple Choice

A occurs when there is one entity in two 1:M relationships to other entities,thus producing an association among the other entities that is not expressed in the model.

• A)surrogate primary key
• B)time-variant data
• C)design trap
• D)fan trap

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Definitions:

Simple Linear Regression

A statistical method that models the relationship between a single independent variable and a dependent variable by fitting a linear equation to observed data.

T-Table Values

Critical values from the t-distribution, used to determine the acceptability of a hypothesis based on the sample data.

Expected Value

The weighted average of all possible values of a random variable, representing the long-term average outcome of a given situation if it were to be repeated many times.

Simple Linear Regression

A statistical method for estimating the relationship between two quantitative variables, allowing predictions of one variable given the other.