Difference between revisions of "Uncertainty"

Latest revision as of 18:37, 20 December 2019

Key Stage 4

Meaning

Uncertainty is the amount by which a reading may be different from the true value.

About Uncertainty

Uncertainty is caused by random errors which take place during an experiment.

The uncertainty in a reading can be found by repeating the reading and halving the range of those readings.

\(Uncertainty=\frac{range}{2}\).

The uncertainty in a result is how far above or below the average result the true value may be.

Examples

	The range is found by subtracting the smallest from the largest value and the uncertainty can be found by halving that range. The uncertainties in this results table are: 0/2 = 0 0.5/2 = 0.25 0.3/2 = 0.15 0.2/2 = 0.1 0.4/2 = 0.2 0.5/2 = 0.25

References

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 .5/2 = 0.25
 |}
+===References===
+====AQA====
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+====Edexcel====
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+====OCR====
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