answer with detailed explanation

Answer the following: a. Through some initial market study (captured in the contingency table below), a marketing manager started promoting skimmed milk powder to the coffee buyers. Do you agree with him? You answer should be justified with association mining metrics. Assume thresholds for support = 30%, confidence = 60%. [4 Marks] Bought Coffee No Coffee Skimmed Milk 1000 875 No Skimmed Milk 500 125 b. When do you prefer apriori algorithm over FP-tree for doing frequent pattern mining