___________ is dividing the sample data into three sets for ...

[ap345]

___________ is dividing the sample data into three sets for training, validation, and testing of the data-mining algorithm performance.
 a. Data sampling
  b. Data partitioning
  c. Data preparation
  d. Model assessment

Question 2

The data preparation technique used in market segmentation to divide consumers into different homogeneous groups is called
 a. data visualization. b. cluster analysis.
  c. market analysis. d. supervised learning.

[mmpiza]

Answer to Question 1

b
RATIONALE: Data partitioning is dividing the sample data into three sets for training, validation, and testing of the data-mining algorithm performance.

Answer to Question 2

b
RATIONALE: Clustering can be employed during the data preparation step to identify variables or observations that can be aggregated or removed from consideration. Cluster analysis is commonly used in marketing to divide consumers into different homogeneous groups, a process known as market segmentation.