Mathematics for IGCSE & O level - Statistical Diagrams (Section 3 - No. 28)

How is the line of best fit generally drawn on a scatter diagram?

Connecting all points

Following a zig-zag pattern

Approximating the general trend of the data

Through only the extreme data points

The line of best fit is a visual representation of the overall trend in the data, which may be close to some points, but not all.