An e-commerce website has collected customer evaluations and want to group them. Let the set of the following evaluations: D={2,5,8,10,11,18,20} We want to divide the data of D into two (2) clusters, using the K-means algorithm. The distance d between two numbers (a) and (b) is calculated as follows: d(a,b)=ab ( the absolute value of (a) minus (b) ). 1. Apply Kmeans by choosing as initial centers (Centroids) of the 2 clusters respectively: 8 and 11. Give the values of each cluster. Show all the computational steps