Thirty children were asked about the number of hours they watched TV programmes 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 12


(i) Make a grouped frequency distribution table for this data, taking class width 5and one of the class intervals as 5 - 10.


(ii) How many children watched television for 15 or more hours a week?


The parts of the questions are solved below:

(i) The distribution table for the given data, taking class width 5 and one of the class intervals as 5-10 is as follows:


NUMBER OF HOURS



FREQUENCY



0-5



10



5-10



13



10-15



5



15-20



2



Total



30



(ii) We conclude from the given table that two children watch television for 15 or more hours a week.


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