What unexpected correlation did Walmart's analytics team discover that led to a famous retail inventory insight?

Walmart revolutionized retail analytics in the early 2000s with a particular discovery that changed how retailers approach inventory management and product placement. This case study demonstrates how data analysis in retail can lead to unexpected insights that significantly impact business strategy and consumer behavior understanding. Test your knowledge of this famous retail analytics breakthrough!

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Hurricane warnings led to increased sales of flashlights and Pop-Tarts
Customers who bought diapers were also likely to purchase organic vegetables
People shopping after 8 PM spent 35% more on impulse purchases
Stores with blue exterior paint outperformed those with other colors by 12%