In a Relational Table,each Row Is Unique and Uniqueness Is

question 21

True/False

In a relational table,each row is unique and uniqueness is guaranteed because the relation has a non-empty primary key value.

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Definitions:

Coefficient Of Correlation

A numerical method for determining the vigor and pathway of a linear bond between two variables.

Scatter Diagram

A graph in which the values of two variables are plotted along two axes, the pattern of the resulting points revealing any correlation present.

Standard Error Of Estimate

A measure of the accuracy of predictions made with a regression line, representing how spread out observed values are from the regression line.

Sum Of Squares For Error

The sum of squared differences between observed and predicted values in a regression model, measuring the discrepancy between the data and the model.