The standard deviation tells us the 'size of the range' around the mean score. I...
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The standard deviation tells us the 'size of the range' around the mean score. In other words it tells us how dispersed the data is in relation to the mean. A low standard deviation means data are clustered around the mean, and high standard deviation indicates data are more spread out.
What is the standard deviation for males in their GCSE examinations? (Use 2 decimal places)
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