What does imbalanced data refer to in the context of data mining?

What is the purpose of cross-validation in model evaluation?

Data mining is a subfield of:

In kNN classification, how is the distance between data points typically calculated?

Data Reduction techniques aim to:

Which technique is used for discovering hidden patterns in large datasets?

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Feature selection helps to:

A minimum of _ 15 A general lighting circuits are required for a 2200 sq ft dwelling.

The allowable fill for a 3″ EMT conduit containing three current-carrying conductors is _ sq in.