Data Handling ICSE Class-8th Concise Selina Maths

Data Handling ICSE Class-8th Concise Selina Mathematics Solutions Chapter-22 . We provide step by step Solutions of Exercise / lesson-22 Data Handling for ICSE Class-8 Concise Selina Mathematics.

Our Solutions contain all type Questions with Exe-22 A and Exe-22 B to develop skill and confidence . Visit official Website CISCE for detail information about ICSE  Board Class-8 Mathematics.

Data Handling ICSE Class-8th Concise Selina Mathematics Solutions Chapter-22


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Exe-22 A,

Exe-22 B,


Exe -22 A Data Handling ICSE Class-8th Concise Selina Mathematics Solutions

Question 1 :-

Arrange the following data as an array (in ascending order):
(i) 7, 5, 15, 12, 10, 11, 16
(ii) 6.3, 5.9, 9.8, 12.3, 5.6, 4.7
Answer :-

(i) Ascending order = 5, 7, 10, 11, 12, 15, 16

(ii) Ascending order = 4.7, 5.6, 5.9, 6.3, 9.8, 12.3

 

Question 2 :-

Arrange the following data as an array (descending order):
(i) 0 2, 0, 3, 4, 1, 2, 3, 5
(ii) 9.1, 3.7, 5.6, 8.3, 11.5, 10.6
Answer :-

 

(i) Descending order = 5, 4, 3, 3, 2, 2, 1, 0
(ii) Descending order = 11.5, 10.6, 9.1, 8.3, 5.6, 3.7

Question 3 :-

Construct a frequency table for the following data:
(i) 6, 7, 5, 6, 8, 9, 5, 5, 6, 7, 8, 9, 8, 10, 10, 9, 8, 10, 5, 7, 6, 8.
(ii) 3, 2, 1, 5, 4, 3, 2, 5, 5, 4, 2, 2, 2, 1, 4, 1, 5, 4.
Answer :-

 

(i)

Data Tally Marks Frequency
5 |||| 4
6 |||| 4
7 ||| 3
8 |||| 5
9 ||| 3
10 ||| 3

(ii)

Data Tally Marks Frequency
1 ||| 3
2 |||| 5
3 || 2
4 |||| 4
5 |||| 4
 

Question 4 :-

Following are the marks obtained by 30 students in an examinations.

15 20 8 9 10
16 17 20 24 30
44 47 38 36 40
27 25 28 30 19
7 11 21 31 41
37 47 23 20 17

Taking class intervals 0-10, 10-20, ……… 40-50 ; construct a frequency table.
Answer :-

 

Class Intervals Tally Marks Frequency
0-10 ||| 3
10-20 |||| || 7
20-30 |||| |||| 9
30-40 |||| | 6
40-50 |||| 5

Question 5 :-

Construct a frequency distribution table for the following data ; taking class-intervals 4-6, 6-8, ……… 14-16.

11.5 6.3 7.8 9.2 10.5
4.5 6 8.3 12.5 15.8
7.4 5.3 8.4 15.2 8.9
9.8 8.25 6.5 5.8 10.5
4.6 6.4 8.9 10.8 12.7
6.6 4.3 4.7 9.4 10.1
15.5 14.4 12.2 7.7 5.5

Answer :-

 

Class Intervals Tally Marks Frequency
4-6 |||| || 7
6-8 |||| ||| 8
8-10 |||| |||| 10
10-12 |||| | 6
12-14 ||| 3
14-16 |||| | 6

Question 6 :-

Fill in the blanks:
(i) Lower class limit of 15-18 is ………
(ii) Upper class limit of 24-30 is ……..
(iii) Upper limit of 5-12.5 is ………
(iv) If the upper and the lower limits of a class interval are 16 and 10 ; the class-interval is ……..
(v) If the lower and the upper limits of a class interval are 7.5 and 12.5 ; the class interval is ……..
Answer :-

(i) Lower class limit of 15-18 is …15
(ii) Upper class limit of 24-30 is …30..
(iii) Upper limit of 5-12.5 is 12.5
(iv) If the upper and lower limits of a class interval are 16 and 10; the class interval is 10 – 16
(v) If the lower and upper limits of a class interval are 7.5 and 12.5 ; the class interval is 7.5 – 12.5

 


Data Handling Exe-22 B for ICSE Class-8th Concise Selina Mathematics 

Question 1 :-

Hundred students from a certain locality use different modes of travelling to school as given below. Draw a bar graph.

Bus Car Rickshaw Bicycle Walk
32 16 24 20 8

Answer :-

A hundred students from a certain locality use different modes of travelling to school as given below. Draw a bar graph. Bus Car Rickshaw Bicycle Walk 32 16 24 20 8

 

Question 2 :-

Mr. Mirza’s monthly income is Rs. 7,200. He spends Rs. 1,800 on rent, Rs. 2,700 on food, Rs. 900 on education of his children ; Rs. 1,200 on Other things and saves the rest.
Draw a pie-chart to represent it.
Answer :-

Mr. Mirza’s monthly income is Rs. 7,200. He spends Rs. 1,800 on rent, Rs. 2,700 on food, Rs. 900 on the education of his children; Rs. 1,200 on Other things and saves the rest.

Name of items Expenditure/Saving in Rupees Central angle
Rent 1800 1800/7200×360º=90º
food 2700 2700/7200×360º=135º
Education 900 900/7200×360º=45º
Others 1200 1200/7200×360º=60º
Saving 600 600/7200×360º=30º
Total 7200 360º

 

Question 3 :-

The percentage of marks obtained, in different subjects by Ashok Sharma (in an examination) are given below. Draw a bar graph to represent it.

English Hindi Maths Science Social Studies
85 60 35 50 70


Answer :-

The percentage of marks obtained, in different subjects by Ashok Sharma (in an examination) is given below. Draw a bar graph to represent it.

 

Question 4 :-

The following table shows the market position of different brand of tea-leaves.

Brand A B C D others
% of Buyers 35 20 20 15 10

Draw it-pie-chart to represent the above information.
Answer :-

The following table shows the market position of different brands of tea-leaves.

Name of brand % of Buyers Central angle
A 35 35/100×360º=126º
B 20 20/100×360º=72º
C 20 20/100×360º=72º
D 15 15/100×360º=54º
Others 10 10/100×360º=36º
100 360º

 

Question 5 :-

Students of a small school use different modes of travel to school as shown below:

Mode Bus Car  Bicycle Auto On foot
No. of students 142 98 50 34 16

Draw a suitable bar graph.
Answer :-

Students of a small school use different modes of travel to school as shown below

 

Question 6 :-

For the following table, draw a bar-graph

A B C D E F
230 400 350 200 380 160

Answer :-

For the following table, draw a bar-graph

 

Question 7 :-

Manoj appeared for ICSE examination 2018 and secured percentage of marks as shown in the following table:

Subject Hindi English Maths Science Social Study
Marks as percent 60 45 42 48 75

Represent the above data by drawing a suitable bar graph.
Answer :-

Manoj appeared for ICSE examination 2018 and secured percentage of marks as shown in the following table

Question 8 :-

For the data given above in question number 7, draw a suitable pie-graph.
Answer :-

∵ 60 + 45 + 42 + 48 + 75 = 270

For the data given above in question number 7, draw a suitable pie-graph.

∴ Central angle for Hindi = 60/270×360º = 80º

Central angle for English = 45/270×360º = 60º

Central angle for Maths = 42/270×360º = 45º

Central angle for Science = 48/270×360º = 64º

and Central angle for Social study = 75/270×360º = 100º

Question 9 :-

Mr. Kapoor compares the prices (in Rs.) of different items at two different shops A and B. Examine the following table carefully and represent the data by a double bar graph.

Items Price (in ₹) at the shop A Price (in ₹) at the shop B
Tea-set 900 950
Mixie 700 800
Coffee-maker 600 700
Dinner set 600 500

Answer :-

Mr. Kapoor compares the prices (in Rs.) of different items at two different shops A and B. Examine the following table carefully and represent the data by a double bar graph.

Question 10 :-

The following tables shows the mode of transport used by boys and girls for going to the same school.

Bus Bicycle Walking Other sources
Number of boys 80 60 20 85
Number of girls 90 75 35 60

Draw a double bar graph representing the above data.
Answer :-

The following tables show the mode of transport used by boys and girls for going to the same school.   	Bus	Bicycle	Walking	Other sources Number of boys  80	60	20	85 Number of girls  90	75	35	60 Draw a double bar graph representing the above data

 

— End of Data Handling ICSE Class-8th Solutions :–

 

Return to – Concise Selina Maths Solutions for ICSE Class -8 


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