Question

Which of the following is/are valid iterative strategies for treating missing values before clustering analysis?

Select the correct answer from below options:

A. Imputation with mean

B. Nearest Neighbor assignment

C. Imputation with Expectation Maximization algorithm

D. All of the above

Answer 1

Answer: (C)

All of the mentioned techniques are valid for treating missing values before clustering analysis, but only imputation with the EM algorithm is iterative in its functioning.