AQA GCSE Mathematics · 8300
Specification S6 · Paper 1, Paper 2, Paper 3
Revise: Scatter GraphsA rising line of best fit has a positive gradient; a falling one has a negative gradient.
Loading…
Loading…
Loading…
GCSE Mathematics · key term
An estimated straight line that represents the overall trend of points on a scatter graph.
Used by AQA and OCR
Specification S6 · Paper 1, Paper 2, Paper 3
Revise: Scatter GraphsA rising line of best fit has a positive gradient; a falling one has a negative gradient.
Specification 12.03c · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Foundation), Paper 4 (Higher), Paper 5 (Higher), Paper 6 (Higher)
A straight line drawn by eye to represent the overall trend of points on a scatter diagram.
Revise: Scatter GraphsWhen a scatter diagram shows an approximately straight upward or downward trend, a line of best fit can summarise it. OCR expects this line to be drawn by eye, so there is not necessarily one uniquely correct position.
Draw a line of best fit through the main trend, with roughly as many points above it as below it. Do not force it through the origin or an outlier.
Show construction lines when reading a prediction from a line of best fit, and remember that the answer is an estimate.
Create a free account to read GCSE Mathematics revision notes for your exam board and track your progress.