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Linear regression is used to model the relationship between two variables and estimate the value of a response by using a line-of-best-fit. This calculator is built for simple linear regression, where only one predictor variable (X) and one response (Y) are used.
This linear regression calculator fits a trend-line to your data using the least squares technique. This approach optimizes the fit of the trend-line to your data, seeking to avoid large gaps between the predicted value of the dependent variable and the actual value.
Learn how to add a trendline in Excel, PowerPoint, and Outlook to display visual data trends. Format a trend or moving average line to a chart.
Use this Linear Regression Calculator to find out the equation of the regression line along with the linear correlation coefficient. It also produces the scatter plot with the line of best fit.
Generate lines of best fit and basic regression analysis for free online with Excel, CSV, or SQL data. Make bar charts, histograms, box plots, scatter plots, line graphs, dot plots, and more. Free to get started!
The linear regression calculator generates the linear regression equation. It also draws: a linear regression line, a histogram, a residuals QQ-plot, a residuals x-plot, and a distribution chart.