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Question
In a village, there are 570 people who have cell phones. An NGO survey their cell phone usage. Based on this survey a histogram is drawn
How many people use the cell phone for less than 3 hours?
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Solution
330 people ...(110 + 220)
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RELATED QUESTIONS
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Using tally marks make a frequency table with intervals as 800 − 810, 810 − 820 and so on.
Observe the following frequency polygon and write the answers of the questions below it.
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- How many students are in the class 80-90?
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| Class interval: | 10−15 | 15−20 | 20−25 | 25−30 | 30−35 | 34−40 |
| Frequency: | 30 | 98 | 80 | 58 | 29 | 50 |
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| Class Interval | 130-140 | 140-150 | 150-160 | 160-170 | 170-180 |
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Draw a histogram to represent the following data:
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| 250 - 300 | 7 |
| 300 - 350 | 4 |
| 350 - 400 | 3 |
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The top speeds of thirty different land animals have been organised into a frequency table. Draw a histogram for the given data.
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| 10 – 20 | 5 |
| 20 – 30 | 5 |
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| 40 – 50 | 8 |
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| 60 – 70 | 2 |
Draw a histogram to represent the frequency distribution in question 91.
