Last updated: March 2, 2026 by Dr. David Park

Simple Linear Regression Analysis

Formula

Linear regression finds the best-fit straight line through a set of data points using the least squares method. The resulting equation y = a + bx can be used for prediction and understanding relationships between variables.

R-squared indicates how well the regression line fits the data, ranging from 0 (no fit) to 1 (perfect fit).

Common use cases:

  • Trend analysis and forecasting
  • Relationship between two variables
  • Predictive modeling in business

Frequently Asked Questions

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Dr. David Park

Applied Mathematician, PhD Mathematics

David holds a PhD in Applied Mathematics from MIT. He has published research on numerical methods and computational algorithms used in engineering and scientific calculators.

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