Simple Linear Regression Explorer

Visualize a population of 500 points, the true regression line, and one random sample of 50 points with its fitted line.

By Chenguang Pan.

N = 500
n = 50
True line is dashed with 80% opacity

Population and Sample (with Regression Lines)

Population: 500 points No sample drawn yet

Notes

The population points are shown at 30% opacity and the true line at 80% opacity. Adjust the sample size, draw a sample, and drag the fitted line to see residuals and MSE update.