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प्रश्न
Draw histogram for the following frequency distributions:
| Class Interval | 0 – 10 | 10 – 20 | 20 – 30 | 30 – 40 | 40 – 50 | 50 – 60 |
| Frequency | 12 | 20 | 26 | 18 | 10 | 6 |
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उत्तर
| Class Interval | Frequency |
| 0 – 10 | 12 |
| 10 – 20 | 20 |
| 20 – 30 | 26 |
| 30 – 40 | 18 |
| 40 – 50 | 10 |
| 50 – 60 | 06 |

Steps of construction:
- Taking suitable scales, mark class intervals on x-axis and frequency on y-axis.
- Construct rectangles with class intervals as bases and corresponding frequencies as heights.
संबंधित प्रश्न
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Answer the following
1) For how many hours did the maximum number of students watch TV?
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3) How many students spent more than 5 hours in watching TV?

The following table shows the investment made by some families. Show
the information by a histogran.
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10-15 | 15-20 | 20-25 | 25-30 | 30-35 |
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(ii) What is the class width?
(iii) What is the lowest frequency?
(iv) What are the class marks of the classes?
(v) In which age group literate females are the least?
Construct a frequency polygon without using a histogram for the following frequency distribution :
| Class Interval | 1-10 | 11-20 | 21-30 | 31-40 | 41-50 |
| Frequency | 8 | 12 | 10 | 16 | 6 |
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