Unsupervised Learning

Question 1

Unsupervised learning provides a means to understand and describe data without

Answer 1

A target variable

Question 2

Unsupervised learning aims to identify

Answer 2

Groups in the data

Question 3

Clustering is

Answer 3

Segmenting observations into similar groups based on the observed variables

Question 4

Dimension reduction is concerned with

Answer 4

Reducing the number of variables in a data set

Question 5

Dimension reduction can be used to facilitate supervised learning by

Answer 5

Creating a smaller set of uncorrected variables

Question 6

Unsupervised learning is part of an

Answer 6

Exploratory data analysis