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2.2 Data presentation and interpretation

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Question 19

Two samples have the summaries below.

min⁡Q1medianQ3max⁡A412182547B215212938\begin{array}{c|ccccc}&\min&Q_1&\text{median}&Q_3&\max\\\hline A&4&12&18&25&47\\B&2&15&21&29&38\end{array}AB​min42​Q1​1215​median1821​Q3​2529​max4738​​

a.

Compare the location and spread of the samples.

[3]
b.

Explain why the range and IQR give different messages about spread.

[2]
Markscheme

2.2 Data presentation and interpretation Questions

  1. A Level
  2. /Maths
  3. /2.2 Data presentation and interpretation

105 exam-style questions on WJEC A Level Maths 2.2 Data presentation and interpretation, covering 2.2.1 Data presentation and interpretation, 2.2.2 Data presentation and interpretation, 2.2.3 Data presentation and interpretation, 2.2.4 Data presentation and interpretation, 2.2.5 Data presentation and interpretation, 2.2.6 Data presentation and interpretation, 2.2.7 Data presentation and interpretation, 2.2.8 Data presentation and interpretation, and 2.2 Data presentation and interpretation. Each one has a worked solution and a mark scheme showing where the marks go.

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