Which mathematical concept was used by Target to predict customer pregnancies for targeted marketing before customers had announced it publicly?

The intersection of mathematics and retail innovation has led to some groundbreaking approaches in how products are developed and marketed. One particular mathematical concept revolutionized how certain retailers arrange their merchandise and predict consumer behavior. This application of mathematics to retail strategy has generated billions in additional revenue for companies that implemented it correctly. Test your knowledge about this fascinating overlap between abstract mathematical concepts and practical retail applications!

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Bayesian probability analysis
Markov chain modeling
Fibonacci sequence optimization
Monte Carlo simulations