The Use of Huge Databases That Combine All of a Company's

question 46

Multiple Choice

The use of huge databases that combine all of a company's data and allow users to access the data directly, create reports, and obtain responses to what-if questions is referred to as:

• A) data mining.
• B) data processing.
• C) transaction processing systems.
• D) data warehousing.

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Definitions:

Simple Linear Regression

A statistical method that shows or predicts the relationship between two continuous variables, using a straight line to describe the linear relationship.

Correlation Coefficient

A statistical measure that calculates the strength and direction of a linear relationship between two quantitative variables.

Residuals

Differences between observed values and the estimated values in a statistical model, reflecting the amount of unexplained variance in the model.

Fitted Values

Estimated values predicted by a regression model, based on the observed data.