Question: What is the main advantage of using hierarchical clustering?

Options:

1. It is faster than K-means
2. It does not require the number of clusters to be specified
3. It can handle large datasets
4. It is less sensitive to outliers

Correct Answer: It does not require the number of clusters to be specified

Solution:

A key advantage of hierarchical clustering is that it does not require the number of clusters to be specified in advance, allowing for more flexibility in analysis.