error intervals
What error intervals means in Mathematics GCSE, as defined for Pearson Edexcel.
Definitions of error intervals
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Reference: Pearson Edexcel
Names every true value a rounded figure could have come from, with the upper end strict because that value would round up instead.
The interval found by halving the rounding unit above and below the rounded value.
Topics that use error intervals
- Number - Measures and accuracy (Pearson Edexcel GCSE)
Related terms
- calculating with bounds
- compound measures
- Error interval
- Inverse operation
- Limits of accuracy
- Lower limit
- Problem solving in context
- Significant Figure
Using error intervals in the exam
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