Q7Short answerExercise 14.2
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.
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No. Infact the number of children who watch TV for 10 or more hours a week is 4 + 2, i.e., 6.