4MA1/1HR Jun 2025, Question 13: Finding the Median and Quartiles
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1HR (Higher) · Calculator · 2 marks
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The question, in short
For the eleven daily egg counts listed, calculate the interquartile range of the data set.
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Solution · 2 marks
- 1n = 11, lower quartile is the (11 + 1)/4 = 3rd value = 12
- 2Upper quartile is the 3(11 + 1)/4 = 9th value = 20
- 3IQR = 20 − 12 = 8
Answer8
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