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🎯 Problem Statement This project explored whether customers who make a second purchase within 30 days of their first order perform better  in terms of overall sales than those who do not. For example, if a customer made their first purchase on February 15 and their second on March 1, they were classified as part of the multiple-purchase-in-first-month  group. Customers who did not make a second purchase within 30 days formed the control group . 💡 Key Business Question Shou