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 5 and one of the class intervals as $5 - 10$ .
(ii) How many children watched television for $15$ or more hours a week?

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Solution

Grouped frequency distribution table with class width $5$ .
The data is represented in the grouped frequency distribution is tabulated below
Number of Hours Frequency
$0 - 5$ $10$
$5 - 10$ $13$
$10 - 15$ $5$
$15 - 20$ $2$
Total $30$

(ii) From the given table,
we observe that $2$ children watched television for $15$ or more hours in a week.

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Similar questions

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

\begin{matrix} 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 \end{matrix}

(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?

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

\begin{matrix} 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 \end{matrix}

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

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?

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 5 and one of the class intervals as 5 - 10.

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

Thirty children wereasked about the number of hours they watched TV programmes in theprevious 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, takingclass width 5 and one of the class intervals as 5 - 10.

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

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

Grouped frequency distribution table with class width5.The data is represented in the grouped frequency distribution is tabulated belowNumber of HoursFrequency0-5105-101310-15515-202Total30 (ii) From the given table,we observe that 2 children watched television for 15 or more hours in a week.