4MA1/2HR Jan 2019, Question 12: Finding the Median and Quartiles
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2HR (Higher) · Calculator · 3 marks
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The question, in short
From Freddie's 11 cricket scores (4, 0, 21, 32, 51, 6, 102, 69, 17, 9, 42), find the interquartile range of the results.
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Solution · 3 marks
- 1Order the 11 results: 0, 4, 6, 9, 17, 21, 32, 42, 51, 69, 102
- 2Lower quartile is the 3rd value: 6
- 3Upper quartile is the 9th value: 51
- 4IQR = 51 − 6 = 45
Answer45
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