# Concise Mathematics Class 7 ICSE Solutions for Chapter 21 - Data Handling

## ICSE Class 7 Mathematics Chapter 21 Selina Concise Solutions - Free PDF Download

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1. Explain the Meaning of Data Handling for Class 7 Maths Chapter 21.

Answer: Data Handling is the process of collecting, recording, or representing information in different useful forms. For example, in the form of graphs or pie charts. It is a collection of numerical figures that exhibit specific types of information. The collection of observations that are originally generated is known as raw data. Data can be in any form. It can be in the form of words, numbers, measurements, observations, or descriptions. Data handling is also known as 'statistics’ and the concept is often found in the study of both Mathematics, and Science.

2. Do the Concise Solutions for Class 7 Maths Chapter 21 Data Handling Useful for the Students?

Answer: Yes, the concise solutions for Class 7 Maths Chapter 21 Data Handling help the students to understand the concepts covered in the chapter. The questions cover topics such as frequency distribution, bar graph, pie chart, etc. Each of the concepts covered in the chapter becomes easy to analyze when you refer to the Concise Solutions for class 7 maths chapter 21 Data Handling. The solutions are prepared by the experts at Vedantu to help you to understand the logic behind the questions. You can download the PDF of Concise Solutions for class 7 Maths Chapter 21 Data handling free of cost on your computers, laptops, etc.

3. Explain the Pie Chart and Bar Graph in Data Handling.

Answer: **Pie Chart -** Pie chart is also known as a circular chart. It is a kind of chart that represents the data in the circular graph. It divides the circular statistics graphs into sectors or slices to represent the numerical problems. Each sector represents the proportionate part of the whole. Pie charts are widely used to find the composition of something. In most of the situations, pie charts replace other graphs like bar graphs, histograms, line graphs, etc.

**Bar Graph -** Bar graph is the pictorial representation of the group data in the form of horizontal or vertical bars, where the length of the bars is equivalent to the measure of the data, known as bar graph or bar chart.

The width of the bars that are drawn on bar graphs are uniform and represented on one of the axes. Also, the measure of the variable is represented on the other axis. The height and width of the bar represent the value of the variable and these graphs are also used to compare the certain quantities. The frequency distribution table can also be formed using the line graph, simplifying the calculations, and helping to understand the data clearly.

4. How Vedantu Selina Solutions for Data Handling are Advantageous for Students?

Answer: The advantages of Vedantu Selina Solutions for Data Handling are:

This topic can be easily understood with the help of the study materials on Vedantu.

These Selina Solutions for class 7 are prepared by the subject matter experts.

Help to score maximum marks in Maths.

Provide an analytical understanding of the topic.

Help in the quick revision of the related concepts and topics.

Solutions are prepared based on the latest ICSE syllabus.