Quick questions on Averages, spread, SIQR and standard deviation - SQA National 5 Applications of Maths

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?

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Find the mean of

5, 8, 11, 16

. [2 marks]

What is q2?

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For the summary

Q_1 = 6

Q_3 = 18

, find the semi-interquartile range. [2 marks]

What is q3?

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Two sets have the same mean but standard deviations

3

and

9

. Which is more consistent? [1 mark]

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