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:

Cyclic AMP

Cyclic AMP (cAMP) is a second messenger important in many biological processes, including the regulation of metabolism, gene transcription, and cell signaling.

Nucleotide

The basic building block of nucleic acids, such as DNA and RNA, consisting of a sugar, phosphate group, and nitrogenous base.

Purines

Nitrogenous bases with carbon and nitrogen atoms in two attached rings (e.g., adenine and guanine); components of nucleic acids, ATP, GTP, NAD1, and certain other biologically active substances. Compare with pyrimidines.

Pyrimidines

A class of nitrogenous bases found in nucleic acids, including cytosine, thymine (in DNA), and uracil (in RNA).