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प्रश्न
30 children were asked about the number of hours they watched TV programmes last week. The results are recorded as under:
| Number of hours | 0 – 5 | 5 – 10 | 10 – 15 | 15 – 20 |
| Frequency | 8 | 16 | 4 | 2 |
Can we say that the number of children who watched TV for 10 or more hours a week is 22? Justify your answer.
एका वाक्यात उत्तर
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उत्तर
No, in fact the number of children who watched TV for 10 or more hour in a week is 4 + 2 i.e.,6.
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