Data source
Paste two columns
Paste X,Y (comma/semicolon/tab)
Paste the following onto the above ^ "Paste X, Y" input label X,Y 1,2 2,2.2 3,2.9 4,3.7 5,4.1
Upload CSV
CSV X column (optional)
CSV Y column (optional)
Confidence Level
0.95
show_residuals
X values to predict (comma separated)
Run to view results
Run to view results
Run to view results
Run to view results
Title
Value
Title
Value
Title
Value
Run to view results
Run to view results
Run to view results
Run to view results
Run to view results
Run to view results
If R² is high but residuals show a curve, the relationship is likely non‑linear. Prediction intervals widen as you move away from the mean X. P‑values tell you about slope ≠ 0, not about practical importance.