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1. To draw a histogram to represent the following frequency distribution:
| Class interval | \(5 - 10\) | \(10 - 15\) | \(15 - 25\) | \(25 - 45\) | \(45 - 75\) |
| Frequency | \(6\) | \(12\) | \(10\) | \(8\) | \(15\) |
The adjusted frequency for the class \(25 - 45\) is:
2. For drawing a frequency polygon of a continuous frequency distribution, we plot the points whose ordinates are the frequencies of the respective classes and abscissae are respectively :
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