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Learn positive and negative correlation in 5 minutes with simple explanations, examples, and diagrams. Perfect for students, engineers, and data analysis beginners.

Learn what correlation coefficient is, how it measures relationships between variables, and how to calculate it step-by-step with real examples, formulas, and easy explanations.

Explore the Gravity Model for analyzing trade, migration, and spatial interactions, with insights on types, formulas, benefits, and real-world uses.