Question 730 children were asked about the number of hours they watched TV programs last week- The results are recorded as under-Whe array Can we say that the number of children who watched TV for 10 or more hour in a week is 22 - Justify your answer-

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard VII

Mathematics

Tally Marks

Question 730 ...

Question

Question 7
30 children were asked about the number of hours they watched TV programs last week. The results are recorded as under:

$\begin{matrix} Number of hours & 0 - 5 & 5 - 10 & 10 - 15 & 15 - 20 Frequency & 8 & 16 & 4 & 2 \end{matrix}$

Can we say that the number of children who watched TV for 10 or more hour in a week is 22? Justify your answer.

Open in App

Solution

No, it is not correct.
In fact, the number of children who watched TV for 10 or more hour in a week is 4 + 2 = 6.

Suggest Corrections

Similar questions

Question 7
30 children were asked about the number of hours they watched TV programs last week. The results are recorded as under:

$\begin{matrix} Number of hours & 0 - 5 & 5 - 10 & 10 - 15 & 15 - 20 Frequency & 8 & 16 & 4 & 2 \end{matrix}$

Can we say that the number of children who watched TV for 10 or more hour in a week is 22? Justify your answer.

Q. Question 7
30 children were asked about the number of hours they watched TV programs last week. The results are recorded as under:

\begin{matrix} N u m b e r o f h o u r s & 0 - 5 & 5 - 10 & 10 - 15 & 15 - 20 F r e q u e n c y & 8 & 16 & 4 & 2 \end{matrix}

Can we say that the number of children who watched TV for 10 or more hour in a week is 22? Justify your answer.

Q. 30 children were asked about the number of hours they watched TV programmes last week. The results are recorded as under :

Number of hours	$0 - 5$	$5 - 10$	$10 - 15$	$15 - 20$
frequncy	$8$	$16$	$4$	$2$

What is the number of children who watched TV for 10 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 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?

Q. Question 8 (ii)
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}

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

Join BYJU'S Learning Program

Question 7 30 children were asked about the number of hours they watched TV programs last week. The results are recorded as under: Number of hours0−55−1010−1515−20Frequency81642 Can we say that the number of children who watched TV for 10 or more hour in a week is 22? Justify your answer.

No, it is not correct. In fact, the number of children who watched TV for 10 or more hour in a week is 4 + 2 = 6.

No, it is not correct.
In fact, the number of children who watched TV for 10 or more hour in a week is 4 + 2 = 6.