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Question
In the following figure, there is a histogram depicting daily wages of workers in a factory. Construct the frequency distribution table.
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Solution
It is clear from the histogram that class interval start from 150 – 200, 200 – 250, having width.
The frequency distribution table is given below:
| Wage (₹) | Number of workers |
| 150 – 200 | 50 |
| 200 – 250 | 30 |
| 250 – 300 | 35 |
| 300 – 350 | 20 |
| 350 – 400 | 10 |
| Total | 145 |
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RELATED QUESTIONS
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| S.No. | Causes | Female fatality rate (%) |
| 1. | Reproductive health conditions | 31.8 |
| 2. | Neuropsychiatric conditions | 25.4 |
| 3. | Injuries | 12.4 |
| 4. | Cardiovascular conditions | 4.3 |
| 5. | Respiratory conditions | 4.1 |
| 6. | Other causes | 22.0 |
- Represent the information given above graphically.
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- Try to find out, with the help of your teacher, any two factors which play a major role in the cause in (ii) above being the major cause.
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| 300 - 400 | 14 |
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In the 'less than' type of ogive the cumulative frequency is plotted against
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(a) using histogram
(b) without using histogram
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C.I |
5 -15 | 15 -25 | 25 -35 | 35 - 45 | 45-55 | 55-65 |
| ƒ | 8 | 16 | 18 | 14 | 8 | 2 |
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e. Which state has the total production of wheat and sugar minimum?
Following table gives the distribution of students of sections A and B of a class according to the marks obtained by them.
| Section A | Section B | ||
| Marks | Frequency | Marks | Frequency |
| 0 – 15 | 5 | 0 – 15 | 3 |
| 15 – 30 | 12 | 15 – 30 | 16 |
| 30 – 45 | 28 | 30 – 45 | 25 |
| 45 – 60 | 30 | 45 – 60 | 27 |
| 60 –75 | 35 | 60 – 75 | 40 |
| 75 – 90 | 13 | 75 – 90 | 10 |
Represent the marks of the students of both the sections on the same graph by two frequency polygons. What do you observe?
