#### Chapters

Chapter 2: Exponents

Chapter 3: Squares and Square Root

Chapter 4: Cubes and Cube Roots

Chapter 5: Playing with Numbers

Chapter 6: Sets

Chapter 7: Percent and Percentage

Chapter 8: Profit, Loss and Discount

Chapter 9: Interest

Chapter 10: Direct and Inverse Variations

Chapter 11: Algebraic Expressions

Chapter 12: Identities

Chapter 13: Factorisation

Chapter 14: Linear Equations in one Variable

Chapter 15: Linear Inequations

Chapter 16: Understanding Shapes

Chapter 17: Special Types of Quadrilaterals

Chapter 18: Constructions

Chapter 19: Representing 3-D in 2-D

Chapter 20: Area of a Trapezium and a Polygon

Chapter 21: Surface Area, Volume and Capacity

Chapter 22: Data Handling

Chapter 23: Probability

## Chapter 22: Data Handling

### Selina solutions for Concise Mathematics Class 8 ICSE Chapter 22 Data Handling Exercise 22 (A) [Page 248]

Arrange the following data as an array (in ascending order):

7, 5, 15, 12, 10, 11, 16

Arrange the following data as an array (in ascending order):

6.3, 5.9, 9.8, 12.3, 5.6, 4.7

Arrange the following data as an array (descending order):

2, 0, 3, 4, 1, 2, 3, 5

Arrange the following data as an array (descending order):

9.1, 3.7, 5.6, 8.3, 11.5, 10.6

Construct a frequency table for the following data:

6, 7, 5, 6, 8, 9, 5, 5, 6, 7, 8, 9, 8, 10, 10, 9, 8, 10, 5, 7, 6, 8.

Construct a frequency table for the following data:

3, 2, 1, 5, 4, 3, 2, 5, 5, 4, 2, 2, 2, 1, 4, 1, 5, 4.

The following are the marks obtained by 30 students in an examination.

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.

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 |

Fill in the blank:

Lower class limit of 15-18 is ………

Fill in the blank:

The upper-class limit of 24-30 is ……..

Fill in the blank:

The upper limit of 5-12.5 is ………

Fill in the blank:

If the upper and the lower limits of a class interval are 16 and 10; the class-interval is ……..

Fill in the blank:

If the lower and the upper limits of a class interval are 7.5 and 12.5; the class interval is ……..

### Selina solutions for Concise Mathematics Class 8 ICSE Chapter 22 Data Handling Exercise 22 (B) [Pages 252 - 253]

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 |

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.

Draw a pie-chart to represent it.

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

English | Hindi | Maths | Science | Social Studies |

85 | 60 | 35 | 50 | 70 |

The following table shows the market position of different brands 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.

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.

For the following table, draw a bar-graph

A | B | C | D | E | F |

230 | 400 | 350 | 200 | 380 | 160 |

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.

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

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 |

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.

## Chapter 22: Data Handling

## Selina solutions for Concise Mathematics Class 8 ICSE chapter 22 - Data Handling

Selina solutions for Concise Mathematics Class 8 ICSE chapter 22 (Data Handling) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Concise Mathematics Class 8 ICSE solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Selina textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Concise Mathematics Class 8 ICSE chapter 22 Data Handling are Collecting Data, Frequency, Raw Data, Arrayed Data and Frequency Distribution, Constructing a Frequency Table, Class Intervals and Class Limits, Graphical Representation of Data, Concept of Data Handling, Frequency Distribution Table.

Using Selina Class 8 solutions Data Handling exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Selina Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 8 prefer Selina Textbook Solutions to score more in exam.

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