_____ is a measure of the heterogeneity of observations in a ...

[soccerdreamer_17]

_____ is a measure of the heterogeneity of observations in a classification tree.
 a. Sensitivity b. Specificity
  c. Accuracy d. Impurity

Question 2

In k-means clustering, k represents the
 a. number of variables.
  b. number of clusters.
  c. number of observations in a cluster.
  d. mean of the cluster.

[Liamb2179]

Answer to Question 1

d
RATIONALE: Impurity is a measure of the heterogeneity of observations in a classification tree.

Answer to Question 2

b
RATIONALE: In -means clustering, k represents the number of clusters.

[soccerdreamer_17]

Thanks for the timely response, appreciate it

[nguyenhoanhat]

Gracias!