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O-LevelMathematicsStatistics4024/12 · May/June 2015 · Q371 Mark

It was found that the recording of the times was inaccurate. The correct times were all one minute more than recorded. Write down the median and interquartile range of the correct times.

Mark scheme

Marking points from the official mark scheme (May/June 2015). The mark or mark type is shown in brackets.

[1] Median 28, IQR 5

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About this question

Topic: Statistics, O-Level Mathematics (syllabus 4024). Structured question, 1 mark.
Source: O-Level Mathematics, May/June 2015 Paper 1 Variant 2, question 37.

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