Thirty children were asked about the number of hours they watched TV programmes in the previous week. The results were found as follows: 16, 23, 5, 12, 5, 8, 4, 8, 10, 3, 4, 12, 2, 8, 15, 11, 7, 6, 3, 2, 8, 5, 9, 6, 8, 7, 14, 12. (i) Make a grouped frequency distribution table for this data, taking class width 5 and one of the class intervals as 5-10. (ii) How many children watched television for 15 or more hours a week?<p></p>

Thirty children were asked about the number of hours they watched TV programmes in the previous week. The results were found as follows: 16, 23, 5, 12, 5, 8, 4, 8, 10, 3, 4, 12, 2, 8, 15, 11, 7, 6, 3, 2, 8, 5, 9, 6, 8, 7, 14, 12. (i) Make a grouped frequency distribution table for this data, taking class width 5 and one of the class intervals as 5-10. (ii) How many children watched television for 15 or more hours a week?

Number of hours	Frequency
0-5	10
5-10	13
10-15	5
15-20	2
Total	30

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