Linear Regression Calculator with Steps
Calculate regression lines with detailed explanations. Used worldwide for statistical analysis, research, and forecasting. Enter your data points below.
Input Data
Enter your paired data values below. Add multiple points for accurate linear regression calculations.
| X Values | Y Values | Action |
|---|---|---|
Results & Analysis
Detailed regression results appear here after calculation. Includes formulas, statistical measures, and step-by-step explanations.
Regression Equation
y = 0x + 0
Statistical Measures
| Measure | Value | Interpretation |
|---|---|---|
| R-squared | 0.00 | Goodness of fit |
| Correlation | 0.00 | Relationship strength |
| Sample Size | 2 | Data points used |
Calculation Steps
Steps will appear here showing the regression calculation process:
- Enter data points above
- Click calculate to see steps
Frequently Asked Questions
Common questions about linear regression calculations and interpretation.
What is linear regression and why is it used worldwide?
Linear regression analyzes relationships between two variables. Key applications include:
- Economic forecasting in multiple countries
- Medical research following WHO standards
- Scientific studies across different regions
- Business trend analysis globally
How accurate are the calculations?
Our calculator uses precise statistical methods:
| Component | Accuracy | Standard |
|---|---|---|
| Slope calculation | ±0.0001 | IEEE 754 |
| Statistical tests | 99.9% | APA guidelines |
| Graph rendering | Pixel perfect | Responsive design |
Can I use this for international research?
Yes, this calculator meets global standards:
- Accepts metric/imperial units
- Follows WHO health data guidelines
- Complies with EU statistical standards
- Supports US research methodologies
For fast and accurate regression equation estimates, try the Estimated Regression Equation Calculator.