# 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 for detail information about ICSE  Board Class-8 Mathematics.

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

–: Select Topics :–

Exe-22 A,

Exe-22 B,

### Exe -22 AData 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

(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

(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.

(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.

 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

 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 ……..

(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

#### 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.

 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

#### 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.

 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.

#### Question 6 :-

For the following table, draw a bar-graph

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

#### 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.

#### Question 8 :-

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

∵ 60 + 45 + 42 + 48 + 75 = 270

∴ 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

#### 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.

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

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