Supermarket ralph is trying to understand association rule

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Reference no: EM132254718

BUSINESS INTELLIGENCE FOR ANALYTICAL DECISIONS

George, the new manager of supermarket Ralph is trying to understand association rule with your help. He provides the following information. In April 2005, 80 transactions contain eggs; 40 transactions contain milk and 15 transactions contain sugar. Moreover, 10 transactions contain all three items (egg, milk and sugar) altogether; 20 transactions contain egg and milk together; 15 transactions contain egg and sugar together and 10 transactions contain milk and sugar together. (Note: these transactions may overlap, e.g. the 15 transactions with both egg and sugar are among the 80 transactions with egg.) George got a rule as follows: egg --> milk with support 20%. Now he asks you to show him the support, confidence and lift for the rule: {egg, milk} --> sugar. (Note: You may not need all the numbers provided here. This question is used to test your understanding about the concept of support, confidence and lift. You should be able to get the answer with a few simple calculations).

Reference no: EM132254718

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