Question
Draw histrogram for the following distributions:
| Class interval | 30-39 | 40-49 | 50-59 | 60-69 | 70-79 |
| Frequency | 24 | 16 | 09 | 15 | 20 |
✓
Answer
| Class Interval (Inclusive from ) | Class Interval (Exclusive from) | Frequency |
| 30-39 | 29.5-39.5 | 24 |
| 40-49 | 39.5-49.5 | 16 |
| 50-59 | 49.5-59.5 | 09 |
| 60-69 | 59.5-69.5 | 15 |
| 70-79 | 69.5-79.5 | 20 |
Step of construction:
(a) Convert the data into exclusive form.
(b) Taking suitable scales, marks class interval on x-axis abd frequency on y-axis.
(c) Construct rectangle with class intervals as bases and corresponding frequencies as heights.
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