Consider the contingency tables shown in Table 6.6.
Table 6.6

(a) For table I, compute support, the interest measure, and the Ï• correlation coefficient for the association pattern {A, B}. Also, compute the confidence of rules A †’ B and B †’ A.
(b) For table II, compute support, the interest measure, and the Ï• correlation coefficient for the association pattern {A, B}. Also, compute the confidence of rules A †’ B and B †’ A.
(c) What conclusions can you draw from the results of (a) and (b)?

A 89 1 A19 A189 (a) Table I. (b) Table II.