Which of the Following Statements Is True About Unsupervised Data

question 31

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.
• E) Hypotheses must be made before running the analysis.

Analyze factors contributing to the spread of mass schooling.

Review global educational performance, focusing on math and science scores.

Critique the fairness and implications of standardized testing methods like SAT and ACT.

Understand the factors contributing to educational inequality and stratification in the U.S.

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Definitions:

Coefficient of Multiple Correlation

A measure used in multiple regression analyses to assess the strength of the relationship between multiple independent variables and a single dependent variable.

Partial-Regression Coefficient

A measure in multiple regression that represents the change in the dependent variable for a one-unit change in a specific explanatory variable, holding all other explanatory variables constant.

Regression Analysis

A statistical method for modeling the relationship between a dependent variable and one or more independent variables, used to predict outcomes and trends.

Independent Variables

Variables in an experiment or statistical model that are manipulated or categorized to observe their effect on the dependent variable.