Random Error

Key Stage 3

Meaning

A random error is when the results in an experiment are affected by an uncontrolled control variable.

About Random Errors

Random errors cannot be predicted.

A random error is just as likely to increase a result as decrease a result.

If a reading is taken repeatedly over several experiments then an average can be used to reduce the effect of the random error.

Key Stage 4

Meaning

A random error is when the results in an experiment are affected by an uncontrolled control variable.

About Random Errors

Random errors cannot be predicted.

A random error is just as likely to increase a result as decrease a result.

If a reading is taken repeatedly over several experiments then an average can be used to reduce the effect of the random error.

Random Errors cause the readings from an experiment to be imprecise.

References

AQA

Random errors, page 12, GCSE Combined Science Trilogy; Physics, CGP, AQA

Random errors, page 13, GCSE Biology, CGP, AQA

Random errors, page 13, GCSE Chemistry, CGP, AQA

Random errors, page 13, GCSE Combined Science Trilogy; Biology, CGP, AQA

Random errors, page 13, GCSE Combined Science Trilogy; Chemistry, CGP, AQA

Random errors, page 13, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA

Random errors, page 267, GCSE Chemistry; Third Edition, Oxford University Press, AQA

Random errors, page 274, GCSE Chemistry, Hodder, AQA

Random errors, page 280, GCSE Physics; Third Edition, Oxford University Press, AQA

Random errors, page 34, GCSE Physics, Hodder, AQA

Random errors, page 5, GCSE Combined Science; The Revision Guide, CGP, AQA

Random errors, page 6, GCSE Chemistry; The Revision Guide, CGP, AQA

Random errors, pages 204, GCSE Combined Science Trilogy 2, Hodder, AQA

Random errors, pages 76, 289, GCSE Combined Science Trilogy 1, Hodder, AQA

Random; errors, page 5, GCSE Biology; The Revision Guide, CGP, AQA

Edexcel

Random errors, page 13, GCSE Biology, CGP, Edexcel

Random errors, page 13, GCSE Chemistry, CGP, Edexcel

Random errors, page 13, GCSE Physics, CGP, Edexcel

Random errors, page 6, GCSE Biology; The Revision Guide, CGP, Edexcel

Random errors, pages 6, 11, GCSE Chemistry; The Revision Guide, CGP, Edexcel

OCR

Random errors, page 16, Gateway GCSE Biology, Oxford, OCR

Random errors, page 16, Gateway GCSE Chemistry, Oxford, OCR

Random errors, page 5, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR

Random errors, pages 16, Gateway GCSE Physics, Oxford, OCR

Random errors, pages 6, 11, Gateway GCSE Chemistry; The Revision Guide, CGP, OCR