Linear Regression Calculator
Calculate the line of best fit and visualize your data.
Linear Regression Calculator
Enter data points (x,y) to calculate the linear regression equation
Key Features
- Calculate the slope and y-intercept of the regression line.
- Visualize data points and the regression line on a scatter plot.
- View detailed, step-by-step calculations.
- Calculate the correlation coefficient (r).
- Dynamically add and remove data points.
- Load example calculations.
- User-friendly interface.
Why Use the Linear Regression Calculator?
This linear regression calculator is useful for analyzing the relationship between two variables. It's a valuable tool for students, researchers, and anyone working with statistical data.
Frequently Asked Questions
What is linear regression?
Linear regression is a statistical method used to model the relationship between a dependent variable and one or more independent variables by fitting a linear equation to observed data.
How do I interpret the correlation coefficient (r)?
The correlation coefficient (r) measures the strength and direction of a linear relationship between two variables. Values range from -1 to +1. A value close to +1 indicates a strong positive correlation, a value close to -1 indicates a strong negative correlation, and a value close to 0 indicates a weak or no linear correlation.
How many data points do I need?
You need at least two data points to calculate a regression line. More data points generally lead to a more reliable model.
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