Regression Analysis Calculator

Linear, multiple, and polynomial regression with correlation analysis

X Data (comma-separated)

Y Data (comma-separated)

Confidence Level (%)

Instructions

1.Select regression type

2.Enter your data points

3.Set confidence level

4.Click Analyze Data

Linear: y = ax + b

Multiple: y = a + bx₁ + cx₂

Polynomial: y = a + bx + cx²

•R² closer to 1: Better fit

•|r| closer to 1: Stronger correlation

•Lower standard error: More precise