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प्रश्न
Assertion (A): 30 children were asked about the number of hours they watched TV programme every day. The results are recorded as under.
| Number of hours | 0-5 | 5-10 | 10-15 | 15-20 |
| Frequency | 8 | 16 | 4 | 2 |
Then the number of children who watched TV for 10 or more hours a day is 22.
Reason (R): The assertion is not correct as the required number is 4 + 2 = 6.
पर्याय
A is true, R is false.
A is false, R is true.
Both A and R are true and R is the correct reason for A.
Both A and R are true and R is the incorrect reason for A.
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उत्तर
A is false, R is true.
Explanation:
The assertion (A) is false because the number of children watching TV for 10 or more hours includes only the frequencies from the 10-15 and 15-20 class intervals. The correct total is 4 + 2 = 6, not 22. The reason (R) correctly identifies this error and provides the accurate calculation, making it a true statement.
