When considering a question such as "Do our customers form natural groups based on similar attributes?" you would use an unsupervised approach.

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Unsupervised learning is often used to identify patterns or groups in data without prior knowledge of what those patterns or groups might be. In this case, we do not have a pre-defined set of attributes or labels that we are trying to predict, so an unsupervised approach is appropriate.

When Considering a Question Such as "Do Our Customers Form