Question: Consider a dataset that contains 200 transactions. A 4-itemset, {A,B,C,D}, has a support of 31 in this dataset. With this information, answer the following questions.

Consider a dataset that contains 200 transactions. A 4-itemset, {A,B,C,D}, has a support of 31 in this dataset. With this information, answer the following questions.

(a) What is the confidence of the rule {} {A,B,C,D}?

(b) What is the confidence of the rule {A,B,C,D} {}

(d) What is the lift of the rule {A,B,C,D} {}?

(e) What can you say about the efficacy of the rules in (a)-(d) given the calculated lift values?

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