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Standard Deviation

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Question 4
59%

The number of errors, xxx, on each of 25 pages of a magazine were recorded.

Here are the summarised results.

∑x=195 \sum x = 195 ∑x=195 ∑x2=6840 \sum x^2 = 6840 ∑x2=6840

Calculate the standard deviation of the number of errors.

Give your answers to 3 significant figures.

[3]

Standard Deviation Questions

  1. GCSE
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  3. /Standard Deviation