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NCERT Solutions for Class 8 Maths Chapter 5 : Data Handling

Chapter 5 Data Handling
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NCERT Solutions for Class 8 Maths Chapter 5 Data Handling is crucial for the students of 8th class to clear their doubts and excel in their examination. These solutions help students to frame a better understanding of the topic. Swiflearn provides these NCERT Solutions to help the students not only sort their difficulties in solving problems but also to develop a deeper understanding of the related concepts and to ease the fear of Maths.

 

NCERT Solutions for Class 8 Maths Chapter 5 by Swiflearn are by far the best and most reliable NCERT Solutions that you can find on the internet. These NCERT Solutions for Class 8 Maths Chapter 5 are designed as per the CBSE Class 8 Maths Syllabus. These NCERT Solutions will surely make your learning convenient & fun. Students can also Download FREE PDF of NCERT Solutions Class 8 Chapter 5.

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NCERT Solutions for Class 8 Maths Chapter 5 : Data Handling Ex 5.1

NCERT 8th Maths Chapter 5 Ex 5.1 1

 

 

Question 1:
For which of these would you use a histogram to show the data:
(a) The number of letters for different areas in a postman’s bag.
(b) The height of competitors in an athletics meet.
(c) The number cassettes produced by 5 companies.
(d) The number of passengers boarding trains from 7.00 a.m. to 7.00 p.m. at
a station. Give reason for each.

 

Solution:
Given that, the histogram is a graphical representation of data, if data is represented in manner of class interval. Thus, for case b and d we would use a histogram to show the data, because in these cases, data can be divided into class intervals. In case b, a group of competitions having different heights in athletics meet. In case d number of passengers boarding trains in an interval
of one hour at a station

 

Question 2:
The shoppers who come to a departmental store are marked as: man (M),
woman (W), boy (B) or girl (G). The following list gives the shoppers who
came during the first hour in the morning. W W W G B W W M G G M M
W W W W G B M W B G G M W W M M W W W M W B W G M W W W
W G W M M W M W G W M G W M M B G G W. Make a frequency
distribution table using tally marks. Draw a bar graph to illustrate it.

 

Solution:
The frequency distribution table is given as follows:

The illustration of data by bar graph is as follows:

 

Question 3:
The weekly wages (in `) of 30 workers in a factory are: 830, 835, 890, 810,
835, 836, 869, 845, 898, 890, 820, 860, 832, 833, 855, 845, 804, 808, 812, 840,
885, 835, 835, 836, 878, 840, 868, 890, 806, 840.
Using tally marks, make a frequency table with intervals as 800 – 810, 810 –
820 and so on.

 

Solution:
The illustration of the data by frequency distribution table using tally marks is as follows:

 

Question 4:
Draw a histogram for the frequency table made for the data in Question 3
and answer the following questions.
(i) How many workers earn 850 and more?
(ii) How many workers earn less than 850?

 

Solution:
(i) Group 830 – 840 has the max number of workers.
(ii) Ten workers earn more than 850.
(iii) Twenty workers earn less than 850

 

Question 5:
The number of hours for which students of a particular class watched
television during holidays is shown through the given graph.
We draw the histogram for above frequency table:
Answer the following:
(i) For how many hours did the max number of students watch TV?
(ii) How many students watched TV for less than 4 hours?
(iii) How many students spent more than 5 hours in watching TV?

 

Solution:
(i) The max number of students watched TV for 4 to 5 hours.
(ii) 34 students watched TV for less than 4 hours.
(iii) 14 students spent more than 5 hours watching TV.

NCERT Solutions for Class 8 Maths Chapter 5 : Data Handling Ex 5.2

 

NCERT 8th Maths Chapter 5 Ex 5.2 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NCERT Solutions for Class 8 Maths Chapter 5 : Data Handling Ex 5.3

 

NCERT 8th Maths Chapter 5 Ex 5.3 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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