No. 5. Refer to the Table Q. 5, describing retailers and their sales quantity and sales revenue in lakhs.

a. Use Z-score transformation to standardize the attribute values.

b. Assume k =3 in k-means method and the initial clusters are chosen to be r4, r6 and r9. Use Euclidean distance to form the clusters. Perform two iterations only.

Table Q.5.

retailer Sales Quantity Revenue r1 29 550 r2 10 500 r3 29 500 r4 12 89 r5 20 250 r6 20 320 r7 15 67.8 r8 29 520 r9 30 530