Theory > Further Maths > 2021 > Section A > 4 > b
WASSCE
The table shows the distribution of monthly income (in thousand of naira) of workers in a factory.
| Monthly income(₦000) | 135-139 | 140-144 | 144-149 | 150-164 | 165-169 |
| number of workers | 20 | 42 | 28 | 38 | 22 |
use the graph to estimate the mode of distribution
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