1. Suppose you are performing a cluster analysis using a data set consisting of eight binary variables A1 to A8. Two of the cases are shown in rows C1 and C2 of Table 1.2.
   1. Calculate the simple matching and Jaccard measures of similarity for these two cases.
   2. Also explain how you would decide which of these two measures to use.
   3. How do the similarity measures relate to measures of distance between data points?

Table 1.2

A1. 1 1 A2 1 0 A3 1 C1 C2 A4 0 0 A5 0 1 A6 1 0 A7 1 A8 1 0 0 1