Describe the main difference between k-means clustering and hierarchical clustering, and a business use case of these algorithms.  

Describe the main difference between k-means clustering and hierarchical clustering, and a business use case of these algorithms.

The initial post must be between 250-300 words in length and is due by 11:59PM EST in your timezone on Thursday. At least two replies to other students are due by Sunday at 11:59PM EST in your timezone. Responding to at least two other students is a requirement; posts must be submitted on time and each peer reply per question must be between 150-200 words in length.