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Nov 2017 p62 q2
2462
The circumferences, \(c\) cm, of some trees in a wood were measured. The results are summarised in the table.
| Circumference (c cm) | \(40 < c \leq 50\) | \(50 < c \leq 80\) | \(80 < c \leq 100\) | \(100 < c \leq 120\) |
|---|---|---|---|---|
| Frequency | 14 | 48 | 70 | 8 |
(i) On the grid, draw a cumulative frequency graph to represent the information.
(ii) Estimate the percentage of trees which have a circumference larger than 75 cm.
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