Data warehouses and data marts are expensive to create, staff, and operate.
22) KDD is synonymous with data mining.
23) With unsupervised data mining, analysts do not create a model or hypothesis before running the analysis.
24) Regression analysis is used to find groups of similar customers from customer order and demographic data.
25) Cluster analysis measures the impact of one set of variables on another variable.
26) Cluster analysis and neural networks are examples of supervised data mining techniques.
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