Author Question: A _____ classifies a categorical outcome variable by splitting observations into groups via a ... (Read 132 times)

haleyc112 · **on:** Jun 24, 2018

A _____ classifies a categorical outcome variable by splitting observations into groups via a sequence of hierarchical rules.
a. regression tree b. scatter chart
c. classification tree d. classification confusion matrix

Question 2

The strength of a cluster can be measured by comparing the average distance in a cluster to the distance between cluster centroids. One rule of thumb is that the ratio for between-cluster distance to within-cluster distance should exceed what value for useful clusters?
a. 0.5
b. 1
c. 1.5
d. 2

Ksh22 · **Reply #1 on:** Jun 24, 2018

Answer to Question 1

c
RATIONALE: A classification tree classifies a categorical outcome variable by splitting observations into groups via a sequence of hierarchical rules.

Answer to Question 2

b
RATIONALE: The ratio of between-cluster distance to within-cluster distance should exceed 1.0 for useful clusters.