All of the Following Statements About Data Mining Are True

question 49

Multiple Choice

All of the following statements about data mining are true EXCEPT

• A) understanding the business goal is critical.
• B) understanding the data, e .g., the relevant variables, is critical to success.
• C) building the model takes the most time and effort.
• D) data is typically preprocessed and/or cleaned before use.

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Definitions:

Third Quartile

A statistical term which represents the 75th percentile of a dataset, indicating that 75% of the data points fall below this value.

Box Plot

A graphical representation of data that shows the distribution's five-number summary: minimum, first quartile, median, third quartile, and maximum.

Interquartile Range

The measure of variability in a dataset, represented by the difference between the 75th (upper quartile) and 25th (lower quartile) percentiles.

Interquartile Range

A measure of variability in a dataset, calculated by subtracting the value at the first quartile from the value at the third quartile.