The semi-interquartile range is \(\frac{1}{2}\times (17-7) = 5\). In cases like these it's often preferable to use the semi-interquartile range when you're comparing data.

The final report of the curriculum and assessment review has recommended the Government cut exam volume at key stage 4 ...

The Government will work to cut GCSE exam time by two-and-a-half to three hours for the average student, it has announced, after the curriculum review said current exam volume was “excessive”. The ...

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