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Construct a grouped frequency distribution table for this data, using class intervals
of size 0.5 starting from the interval 2 - 2.5.
Asked by Sensoph Last Modified
Answer 
Tasneem
A grouped frequency table of class size 0.5 has to be constructed, starting from class interval 2 − 2.5.
Therefore, the class intervals will be 2 − 2.5, 2.5 − 3, 3 − 3.5…
By observing the data given above, the required grouped frequency distribution table can be constructed as follows.
| Lives of batteries (in years) | Number of batteries |
| 2 − 2.5 | 2 |
| 2.5 − 3.0 | 6 |
| 3.0 − 3.5 | 14 |
| 3.5− 4.0 | 11 |
| 4.0 − 4.5 | 4 |
| 4.5 − 5.0 | 3 |
| Total | 40 |
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