Box-and-Whisker Plots
Box-and-Whisker Plots
Secondary 4
The introductory diagram is schematic and is not drawn to a uniform horizontal scale. Read the labelled values, not the lengths. Quartile percentages describe ordered portions; ties and finite-sample conventions can place more than 25% at or below a labelled quartile.
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Answer:Minimum \(33\), \(Q_1=40\), median \(Q_2=50\), \(Q_3=67\), maximum \(70\), interquartile range \(27\), range \(37\).
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