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

(i) Make a grouped frequency distribution table for this data

Given:

Thirty children were asked about the number of hours they watched T.V. programmes in the previous week.

To do:

We have to

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

(ii) find the number of children who watched television for 15 or more hours a week.

Solution:

Highest number of hours $= 17$

Lowest number of hours $= 1$

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

(ii) Number of children watching T.V. for 15 or more hours a week is $2$.

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Updated on: 10-Oct-2022

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