I need assistance with a case study question from business analytics 3318. It over the case problem: Know Thy Customer.

I need assistance with a case study question from business analytics 3318. It over the case problem: Know Thy Customer.

Using k-means clustering on all seven variables, experiment with different values of k. Recommend a value of k and describe these k clusters according to their “average” characteristics. Why might k-means clustering not be good method to use for these seven variables?