Lines of best fit

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GCSE Maths (Year 8 Statistics 1) Note on Lines of best fit, created by Ellen Billingham on 08/05/2013.
Ellen Billingham
Note by Ellen Billingham, updated more than 1 year ago
Ellen Billingham
Created by Ellen Billingham about 11 years ago
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Page 1

Line of best fit = a line on a graph that is equally distributed between the points. Used to find trends.

Least squares regression line (don't need to know this until sixth form) is better than a line of best fit.

Least squares regression lines are where the sum of the squares of the vertical distance between the points and the line are minimised using a formula.

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