The following cumulative frequency distribution table shows the daily electricity consumption (in kW) of 40 factories in an industrial state:
Consumption(in kW) | No. of factories |
Below 240 | 1 |
Below 270 | 4 |
Below 300 | 8 |
Below 330 | 24 |
Below 360 | 33 |
Below 390 | 38 |
Below 420 | 40 |
Represent this as a frequency distribution table."
Given:
The given cumulative frequency distribution table shows the daily electricity consumption (in kW) of 40 factories in an industrial state.
To do:
We have to prepare a frequency distribution table.
Solution:
The frequency distribution table is given below:
Consumption(in kW) | Number of Factories (c.f.)
| Frequency (f)
|
210-240 | 1 | 1 |
240-270 | 4 | 3 |
270-300 | 8 | 4 |
300-330 | 24 | 16 |
330-360 | 33 | 9 |
360-390 | 38 | 5 |
390-420 | 40 | 2 |
Total |
| 40 |
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