When clustering only by dummy variables that represent categorical variables, the simplest measure of similarity between two observations is called the
A)matching coefficient.
B)Jaccard's coefficient.
C)Euclidean distance.
D)antecedent.

Question

Quizplus · Accepted Answer

The matching coefficient is the simplest measure of similarity between two observations when clustering only by dummy variables that represent categorical variables. It calculates similarity based on the number of matches over all attributes, making it particularly suitable for binary or dummy variables.

When Clustering Only by Dummy Variables That Represent Categorical Variables