# line of best fit

## English[edit]

### Noun[edit]

**line of best fit** (*plural* **lines of best fit**)

- (mathematics) A line on a scatter plot that best defines or expresses the trend shown in the plotted points. It is chosen so that the sum of the squares of the distances from the points to the line is a minimum. It also illustrates the correlation (positive, negative, or zero correlation) between the plotted variables.