Which of the Following Statements Is True About Unsupervised Data

question 35

Multiple Choice

Which of the following statements is true about unsupervised data mining?

• A)Analysts do not create a model or hypothesis before running the analysis.
• B)Neural networks are a popular unsupervised data mining application.
• C)Unsupervised data mining requires tools such as regression analysis.
• D)Data miners develop a model prior to the analysis and apply statistical techniques to data.

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Definitions:

Life Expectancy

The average number of years a person is expected to live, based on statistical analysis of current mortality rates.

Industrial Countries

Nations with highly developed economies characterized by significant industrial activity, advanced technology, and a high standard of living.

Labor-Intensive Service Sector

A segment of the economy that relies heavily on human labor rather than machinery to provide services.

Manufacturing Productivity

The measure of output produced per labor hour in the manufacturing sector.