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GCSE Psychology · key term
The digits retained when expressing a number to a chosen precision, counted from its first non-zero digit.
Used by AQA and OCR
Paper 1, Paper 2
Revise: Computation SkillsSignificant figures express the precision of a number. Start counting at the first non-zero digit.
A digit counted when expressing the precision of a number. Significant figures are counted from the first non-zero digit.
Count significant figures from the first non-zero digit; count decimal places from the decimal point.
Round directly from the original value to the requested number of significant figures, rather than rounding in stages.
Significant figures and decimal places are different. Count significant figures from the first non-zero digit.
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Paper 1, Paper 2
A digit counted towards a number’s precision, starting with its first non-zero digit.
Revise: Descriptive StatisticsSignificant figures count from the first non-zero digit, wherever it occurs. These are different ways of stating numerical precision.
The digits retained to express a number's precision, counted from its first non-zero digit. Zeros between significant digits and trailing zeros after a decimal point are significant.
