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2.5 Data presentation and interpretation

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Question 109

A dataset has lower quartile 28 and upper quartile 44. The outlier rule is 1.5×IQR1.5\times\mathrm{IQR}1.5×IQR beyond either quartile.

a.

Find the lower and upper outlier boundaries.

[2]
b.

Identify the outliers among 1,5,68,731,5,68,731,5,68,73.

[2]
Markscheme

2.5 Data presentation and interpretation Questions

  1. A Level
  2. /Maths
  3. /2.5 Data presentation and interpretation

278 exam-style questions on CCEA A Level Maths 2.5 Data presentation and interpretation, covering 2.5.1 Data presentation and interpretation, 2.5.2 Data presentation and interpretation, 2.5.3 Data presentation and interpretation, 2.5.4 Data presentation and interpretation, 2.5.5 Data presentation and interpretation, 2.5.6 Data presentation and interpretation, 2.5.7 Data presentation and interpretation, 2.5.8 Data presentation and interpretation, 2.5.9 Data presentation and interpretation, and 2.5 Data presentation and interpretation. Each one has a worked solution and a mark scheme showing where the marks go.

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