Mathematics for IGCSE & O level - Statistical Diagrams (Section 5 - No. 19)
What is the purpose of a line of best fit on a scatter diagram?
To show the median of the data
To estimate the relationship between the variables
To connect all the data points
To represent the range of the data
Explanation
The line of best fit is used to model the general trend or relationship between the two variables in the scatter diagram.
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