Thirty children were asked about the number of hours they watched TV programes in the previous week.
Thirty children were asked about the number of hours they watched TV programes in the previous week. The results were found as follows:
1, 6, 2, 3, 5, 12, 5, 8, 4, 8
10, 3, 4, 12, 2, 8, 15, 1, 17, 6
3, 2, 8, 5, 9, 6, 8, 7, 14, 2.
(i) Make a 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.
(i) Class intervals will be 0 - 5, 5 - 10, 10 - 15 …
The grouped frequency distribution table is as follows:
(ii) The number of children who watched TV for 15 or more hours a week is 2(i.e number of children in class interval 15 - 20).
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