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Author Question: _____ is a measure of the heterogeneity of observations in a classification tree. a. Sensitivity b. ... (Read 133 times)

soccerdreamer_17

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on: Jun 24, 2018
_____ 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.


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Liamb2179

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Reply #1 on: Jun 24, 2018
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

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Reply 2 on: Jun 24, 2018
YES! Correct, THANKS for helping me on my review

bassamabas

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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