K Means Clustering

Code: https://github.com/codebasics/py/blob/master/ML/13_kmeans/13_kmeans_tutorial.ipynb
K Means algorithm is unsupervised machine learning technique used to cluster data points. In this tutorial we will go over some theory behind how k means works and then solve income group clustering problem using skleand kmeans and python. Elbow method is a technique used to determine optimal number of k, we will review that method as well.