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
Giải thích
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.