O-LevelMathematicsStatistics4024/11 · May/June 2015 · Q72 Marks
The times taken by each member of a group of people to run one kilometre were recorded. The results are shown in the table. Time (t minutes) 2<t≤3, 3<t≤4, 4<t≤5, 5<t≤6, 6<t≤7, 7<t≤8 Frequency 0, 4, 5, 3, 1, 0
- On the grid below, draw a frequency polygon to represent these results.[2]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (May/June 2015). The mark or mark type is shown in brackets.
- [2] Correct frequency polygon
- B1 for linear vertical scale and 5 or 6 correct heights.
- B1 for plots at the midpoints of the intervals, and joined by straight lines.
- After B0, allow SC1 for 4 or 5 correct plots (i.e. correct midpoints and heights).
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