Question

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.

Answer 1

No, in fact the number of children who watched TV for 10 or more hour in a week is 4 + 2 i.e.,6.