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GCSE Mathematics · key term
The set of possible output values of a function.
Used by AQA, Edexcel and OCR
Specification A12, S4 · Paper 1, Paper 2, Paper 3
Revise: Graphs of Trigonometric FunctionsTangent has no maximum or minimum: its outputs are unbounded and its range is all real numbers.
The greatest value minus the least value; it measures the overall spread of a data set.
Specification A7, S4 · Paper 1, Paper 2, Paper 3
The set of possible output values from a function.
Revise: Inverse FunctionsThis exchange also means that the domain of a function becomes the range of its inverse, while its range becomes the inverse's domain. A linear function with a non-zero gradient gives each output from exactly one input, so its inverse is also a function.
The difference between the greatest and least values in a data set.
Specification 12.03a · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Foundation), Paper 4 (Higher), Paper 5 (Higher), Paper 6 (Higher)
The difference between the greatest and least values; it measures spread rather than average.
Revise: Averages and Range for Ungrouped and Grouped DataThe range describes how spread out the data is.
Put raw data in numerical order before finding the median or range.
Put the data in order before finding quartiles or the range.
State the values used: for example, , rather than giving only the answer.
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