What Is True of Sample Size in Relation to Decision

Multiple Choice

What is true of sample size in relation to decision tree analysis?

A) Ten times the number of predictor variables is the minimum number of observations required for decision tree solutions.
B) Significance testing of decision tree solutions is unreliable with small samples.
C) In larger trees, lower nodes may be based on too few observations, meaning the solution will lack statistical power.
D) Sample size does not matter in decision tree analysis.