CBEHub

← 2.1 Approximation and Errors

Absolute and relative error

Mathematics · Grade 11 · about 40 minutes

Name the positive gap as the absolute error, then divide by the true value to get the relative error and the percentage error.

Sign in to read this lesson

Lessons are for learners and teachers with an account. Browsing the curriculum — subjects, strands and what each sub-strand covers — stays open to everyone.

  • 8 sections of explanation, worked examples and diagrams
  • 1 practice task with hints and worked answers
  • A quiz that marks itself as you go
  • Your progress kept across every subject you take
Sign in Create an account

Other lessons in this sub-strand

  1. Absolute and relative error
  2. Working limits of a reading
  3. Percentage error from a reading
  4. The error made by rounding
  5. Truncation is not rounding
  6. Adding two measured lengths
  7. Subtracting measured quantities
  8. The limits of a rectangular area
  9. The limits of a speed
  10. A margin for a journey