When drawing a ‘best fit’ line on a scatter diagram, you need to keep in mind a few points as these will determine whether you best fit line will be judged as acceptable or not acceptable in an exam situation.

In most cases, the follow up question to drawing a best fit line is a quesion on estimating which is also covered in this article.

This diagram showsn a best fit line drawn with the points that need to be considered.

The diagrams below show lines that are NOT A BEST FIT .

Part 2 – Estimating

Similar Shapes
Is my Term in the Sequence