9709 P62 - Nov 2011 - Q4
2405
The weights of 220 sausages are summarised in the following table.
| Weight (grams) | <20 | <30 | <40 | <45 | <50 | <60 | <70 |
|---|---|---|---|---|---|---|---|
| Cumulative frequency | 0 | 20 | 50 | 100 | 160 | 210 | 220 |
- State which interval the median weight lies in.
- Find the smallest possible value and the largest possible value for the interquartile range.
- State how many sausages weighed between 50 g and 60 g.
- On graph paper, draw a histogram to represent the weights of the sausages.
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