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GCSE Geography · key term
Data containing paired values for two variables, such as river width and river depth measured at each site.
Used by AQA and OCR
Paper 1, Paper 2, Paper 3
Revise: Bivariate Data and Evaluating Statistical PresentationAt each site, the two measurements form a pair: the width and depth must come from the same site. This is bivariate data, meaning data about two variables.
Specification 9.3 · Paper 1, Paper 2, Paper 3
Data recording two variables for each observation, so that their relationship can be investigated.
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These are bivariate data because each observation contains two variables. A variable is a quantity that can take different values, such as distance or journey time. A scatter plot makes their relationship easier to see: distance goes on the horizontal axis and time on the vertical axis.