Question

Thirty children were asked about the number of hours they watched TV programmes in the previous week. The results were found as under:

8, 4, 8, 5, 1, 6, 2, 5, 3, 12, 3, 10, 4, 12, 2, 8, 15, 1, 6, 17, 5, 8, 2, 3, 9, 6, 7, 8, 14, 12.

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

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

Answer 1

(i) Grouped Frequency Distribution Table

Class interval	Frequency
0-5	10
5-10	13
10-15	5
15-20	2

(ii) From the frequency distribution table we know that 2 children watch TV for 15 or more hours a week.

Answer 2

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