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प्रश्न
Draw histogram for the following frequency distributions:
| Class Interval | 30 – 39 | 40 – 49 | 50 – 59 | 60 – 69 | 70 – 79 |
| Frequency | 24 | 16 | 09 | 15 | 20 |
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उत्तर
| 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 |
Steps of construction:
- Convert the data into exclusive form.
- 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.
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संबंधित प्रश्न
Draw the frequency polygon for the following frequency distribution
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| 20 — 25 | 2 |
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| 40 — 45 | 10 |
| 45 — 50 | 7 |
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Draw a histogram to represent the following data:
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| 5600−5700 | 8 |
| 5700−5800 | 4 |
| 5800−5900 | 3 |
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| Number of families | 200 | 240 | 300 | 50 |
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In a histogram, class intervals and frequencies are taken along ______ axis and ______ axis.
Look at the histogram below and answer the questions that follow.
- How many students have height more than or equal to 135 cm but less than 150 cm?
- Which class interval has the least number of students?
- What is the class size?
- How many students have height less than 140 cm?
