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RD Sharma Class 9 Solutions Chapter 22 Tabular Representation of Statistical Data (Ex 22.1) Exercise 22.1

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Last updated date: 04th Mar 2024
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IVSAT 2024

Tabular Representation of Statistical Data

Free PDF download of RD Sharma Class 9 Solutions Chapter 22 - Tabular Representation of Statistical Data Exercise 22.1 solved by Expert Mathematics Teachers on Vedantu.com. All Chapter 22 - Tabular Representation of Statistical Data Ex 22.1 Questions with Solutions for RD Sharma Class 9 Maths to help you to revise complete Syllabus and Score More marks. Register for online coaching for IIT JEE (Mains & Advanced) and other Engineering entrance exams. You can also register Online for Class 9 Science tuition on Vedantu.com to score more marks in your examination. Vedantu is a platform that provides free CBSE Solutions (NCERT) and other study materials for students.

Competitive Exams after 12th Science

How is Data Presented in a Tabular Format?

This table makes it possible to display large amounts of data in an engaging, easy-to-understand, and coordinated way. Rows and columns are used to arrange data. As data tables are simple to prepare and read, this is by far the most popular form of presentation of data.

Tabulation provides the most significant benefit of combining data for further statistical analysis and decision-making. Tabulation can be broken down into four major categories. These include:

  1. Analyzing qualitative data

  2. quantitatively

  3. Temporal

  4. Spatially

1. Qualitative Classification: It refers to a classification that is based on qualities such as physical condition, nationality, social standing, etc.

2. Classification Based on Quantitative Features: In this process, data is classified based on numerical features. Quantitative estimates can be constructed for these features.

3. Classification According to the Phase of Time: In this classification, time becomes a categorizing variable and time determines how data are categorized. Perhaps the time is measured in years, months, weeks, days, or even hours.

4. Spatial Classification: When categorisation is based on location, they are called spatial classification. Places can be countries, states, districts, blocks, villages, towns, etc.

FAQs on RD Sharma Class 9 Solutions Chapter 22 Tabular Representation of Statistical Data (Ex 22.1) Exercise 22.1

1. Describe the basic elements of tabular presentation with reference to Class 9 Chapter 22 Tabular Representation.

Basic Principles of Tabular Presentation are:

The Concepts of Tabulation

A tabular presentation of data, i.e., tabulation, is a method of presenting data.

In addition, it is a methodical and logical arrangement of data in the form of rows and columns according to characteristics of the data.

An orderly arrangement is compact, self-explanatory and compact.

Its Purpose is to: Present the data in a simple form, save space (economize), facilitate comparisons, facilitate statistical analyses, and reduce the chances of errors.

2. Describe the major elements of a table with reference to Class 9 Chapter 22 Tabular Representation.

A Table is Composed of the following Parts:

The number of the table: 

To facilitate easy identification and further reference, the table number appears as the very first item on the top of each table.

Table title

The title of the table is shown above the table as the second item.

A table narrator is responsible for summarizing the contents of the table, so it must be very clear, brief, and carefully crafted.

Headnote

It appears as the third item just above the table and right after the title.

The units of reporting are explained, for instance, 'in terms of rupees or dollars', 'in terms of tonnes'.

These units are usually bracketed.

Captions on columns or row headings.

Each column in a table is designated by its heading, which explains the figures in each column.

We call this the 'caption' for each column.

The Stub or Row Descriptors are at the top of the columns.

There is a name for the horizontal rows called 'stubs'.

Description of the table 

A report contains numeric information and reveals the full story of what has been researched. Rows are read horizontally from left to right and columns from top to bottom.

Source note 

This is a brief statement or phrase that specifies the source of information in the table.

Footnote 

The table is explained in this section for a particular purpose that is not self-explanatory and is not explained earlier. Examples include any points of exception.

3. Tell us about the objectives of the tabular presentation with reference to Class 9 RD Sharma Chapter 22 Tabular Representation.

Following are the objectives of the tabular presentation:

  • The tabular presentation helps you to simplify the vast or complex data into the very easiest form with the tables.

  • Since the data is so precise, it will also be helpful to bring out its most significant features.

  • Comparison is made easier by the tabular representation of any data, which gives you a good idea about the differences between 2 or more objectives and makes it easier to distinguish between them

  • In addition, it facilitates statistics analysis by placing it at the forefront of the data management process.

  • Tables are compact and take up little space to provide brief information because they are compacted completely.

4. Describe with reference to Class 9 Chapter 22 Tabular Representation (i) singular form, and (ii) plural form how you understand the term "statistics.".

Statistical information is used in both the singular and plural senses of the word.

The science of statistics can be defined as the collection, presentation, analysis, and interpretation of numerical data in its most general sense.

Statistics refers to numerical facts or observations that have been gathered for a specific purpose.

Among statistics, there is income and expenditure information for a particular area, as well as the number of men and women living in a particular area. You can refer to our website directly with the Vedantu link to explore and learn more topics easily.

5. Give some examples of statistical characteristics with reference to Class 9 Chapter 22 Tabular Representation. Here are some examples:

Here are Some Examples:

  • A single observation doesn't constitute a statistical measurement. Statistics are the results of a series of observations.

  • The expression of statistics is quantitative rather than qualitative.

  • Statistics are collected and analyzed for a specific purpose.

It is possible to classify experimental statistics into different groups based on their statistics. In its simplest form, statistics involves collecting, organizing, analyzing, interpreting, and presenting data. Traditionally, the first step in the application of statistics to any scientific, industrial, or social problem is to choose a statistical population or model.