Which mathematical model is most commonly used as the foundation for sophisticated retail churn prediction systems that analyze purchase frequency patterns?

In the retail industry, mathematics plays a crucial role in predicting customer behavior and preventing churn. Advanced algorithms and statistical models help businesses identify at-risk customers before they leave. This trivia question tests your knowledge about the mathematical foundations behind modern retail churn prediction systems.

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Markov Chain Models
Euclidean Distance Algorithms
Fibonacci Sequence Analysis
Pythagorean Triple Systems