GCSE Maths (Edexcel)

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Precise Measurements

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Number Measures and Accuracy

Precise Measurements

3:15 Limits of Accuracy
Spec N16
Previous Error Intervals Next Integer Limits of Accuracy
  • The precision of a measurement depends on the precision of the measuring instrument
  • The precision of a measuring instrument is the smallest increment that can be read using it
  • A more precise instrument will give smaller error intervals on the measurement
  • The error interval is the range of possible values around the recorded measurement
  • A more precise instrument allows for a smaller error interval and therefore a more accurate measurement
  • The Coastline Paradox is a concept related to the precision of measuring instruments
  • Being able to determine which instrument is more precise using error intervals is an important skill

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