GCSE Maths (AQA)

435 videos | 33 hours

Line of Best Fit

Please subscribe to watch this video.

This, and all other videos, are included in our premium subscriptions.

Premium accounts get access to all videos.

Statistics Statistics

Line of Best Fit

4:09 Using Scatter Diagrams
Spec S6
Previous Analysing Cumulative Frequency Graphs Next Outliers on Scatter Diagrams
  • Scatter diagrams are used to represent bivariate data
  • The line of best fit is a straight line that describes the correlation of the data
  • The line of best fit can show if there is a positive or negative correlation between the variables
  • The line of best fit should pass through the middle of the points and be as close to them as possible
  • Computers can determine the best possible best fit line, but at GCSE level, it is only expected to be drawn by eye
  • The line of best fit does not have to go through the origin
  • Stronger correlations make it easier to draw the line of best fit
  • A line of best fit cannot be drawn when there is no correlation between the variables

Please subscribe to access these revision notes.

This, and all other video notes, are included in our premium subscriptions.

Premium accounts get access to all videos and revision notes.