Courses

Courses for Kids

Free study material

Store

Talk to our experts

1800-120-456-456

Commerce

Sandeep Garg Economics Class 11 Chapter 3 Solutions

Sandeep Garg Economics Class 11 Chapter 3 Solutions

Class 11 Economics Sandeep Garg Solutions Chapter 3 – Diagrammatic Presentation

Sandeep Garg Class 11 Economics Solutions Chapter 3 is an illustration curated by professional economic educators for students to comprehend the concepts and procure good scores. The Sandeep Garg Solution is a credible source of reference that provides fundamentals and a comprehensive understanding of solved exercises for economic students. The Solutions offer an enhanced preparation process, and students can download the chapter-wise solutions from here for free and prepare accordingly.

The professional economic educator illustrated the diagrammatic presentation from Sandeep Garg Economics Class 11 textbook solutions chapter 2 from the contemporary edition of the textbook. Students can learn more about the subject through Sandeep Garg Economics Class 11 Solutions. As students complete their homework or study for their exams, these insights will be a valuable asset. Economics is a subject with numerous concepts, but here we present the solution from our Tabular Presentation, which will be quite helpful to the students who are preparing for their exam.

Sandeep Garg Economics Class 11 Solutions for Chapter 3 – Diagrammatic Presentation

Introduction to Class 11 Economics Sandeep Garg Solution Chapter 3 PDF

The Sandeep Garg Class 11 Economics Solutions Chapter 3 is an easy and scoring chapter that presents how to show data efficiently through the use of diagrammatic presentations like bar charts, histograms, pie charts, and so on.

The Sandeep Garg Class 11 Economics Solutions Chapter 3 is the study of data in a simple and presentable manner through the representation of diagrams.

There are Two Basic Types of Diagrammatic Presentations

1. Geometric Form: The Geometric type of diagrammatic presentation includes presentations like- Pie Diagram and Bar Diagram

Circular or Pie Chart

There are radii at each corner of the circle to divide the area into sectors, so a pie chart consists of a circle. Further, the sector values are proportional to those of the items that are under investigation. Additionally, the circle comprises the entire data set under consideration.

A Step-by-Step Guide to Drawing Pie Charts

Provide a percentage breakdown of the components of the data given
In the center of the circle, the angle is 360 degrees, so divide each percentage component by 3.6.
Make a circle.
Divide the circle into sectors according to the central angles of each percent component.
Use different shades for each sector.

2. Frequency Diagram: The Frequency type of diagrammatic presentation includes presentations like- Histogram, Frequency Polygon, Frequency Curve, and Ogive curve. Line charts or polygons showing frequency distributions are called frequency diagrams. Below is a frequency chart showing the corresponding table results. The midpoint of each group represents the frequency polygon of grouped data.

Histograms are bar graphs that show frequency distributions. Follow the below mentioned important steps on how to create a histogram:

Place frequencies are displayed vertically. The frequency axis in this place would be labeled as the term "Frequency.".
Place each interval's lower value on the horizontal axis. Provide a label for this axis explaining what data are shown (the price of birthday cards, etc.).
In each interval, make a line extending from the smallest value to the smallest value of the next interval. It is recommended that each bar have the same height as the frequency of the interval it represents.

Advantages of Diagrammatic Presentation

The use of diagrammatic presentation in a chapter helps in a better understanding of the concept. Given below are some of the advantages of it:

The Class 11 Economics Diagrammatic Presentation Sandeep Garg chapter presents data in the form of a simple and colorful manner appealing and at the same time in a comprehensive manner.
The Diagrammatic Presentation in a chapter saves a lot of time as it presents complex data in a simplified manner.
Diagrammatic Presentation Class 11 Economics Sandeep Garg chapters are more informative as they not only depict data characteristics but also reveal other hidden relations and facts which remain unsolvable from the classified and tabulated data.
The Diagrammatic Presentations are super easy to comprehend as they give a great memorizing effect.
Class 11 Economics Sandeep Garg Solution Chapter 3 Pdf helps students present a huge mass of complex data in an intelligible, simplified, and understandable form
The Diagrammatic Presentation chapter presents two sets of data in a visually pleasing and easily comparable manner.
The diagrammatic representation of data is easy to understand by a common man. Diagrams are really too attractive and they are also impressive, with many newspapers and magazines using them often so that they can describe certain phenomena. Advertisement campaigns also utilize diagrams heavily nowadays.
Simplified Presentation-You can easily present large volumes of complex data in a simplified and understandable way by using diagrams.
A hidden fact is revealed when data is sorted and tabulated - some facts are not revealed during this process. Data visualization helps reveal these concealed facts as well as their relations.
Diagrams help people to grasp the data easily when it is presented in a graphical form.
Compare with ease - Diagrams make it easy for people to compare data.
This is universal - almost all fields of study such as business, economics, social institutions, administrative work, etc. make use of diagrams. Consequently, they are universally accepted.

A General Principle of Diagrammatic Presentation of Data

In order to best communicate the information contained in statistical data, a diagrammatic presentation is the best method. In order to make diagrammatic presentations more effective tools for understanding data, you should follow the following general principles:

The title should give a clear, concise, and unambiguous explanation of the topic. In the footnote below the diagram, you can provide more information about the title.
Diagrams must be constructed so that the viewer is immediately engaged. Your drawing should be drawn neatly, with an appropriate balance between its length and breadth. Also, you have to make sure about the fact that the diagram is neither too large nor too small. Colors, shades, and sizes can also be used to emphasize different aspects of a problem.
Ensure that the drawing is accurate by using the proper measurements and colors. Always put accuracy above attractiveness in your drawings.
Consider the nature of the data and the purpose of the investigation when selecting the design of the diagram.
The diagram should be indexed if you use different shades or colors to illustrate different characteristics.
Please specify where the data comes from if you are using a secondary source.
Your diagram should be as simple as possible.

Preparation Tips

The Class 11 Economics presents theories in Tabular or Graphical or Diagramatic presentation along with the necessary formula for students to comprehend readily.
Students should ensure to practice the problems that involve diagrammatic presentations regularly.
The most effective preparation approach is to understand the working and application of a formula over memorizing. A thorough understanding and regular practice of all the important formulas chapter-wise helps better comprehension of the chapter.
Students must comprehend and analyze the logic and reasoning of all the important topics and give special focus to the various graphical presentations.

Conclusion

The Sandeep Garg Class 11 Solutions for Economics Chapter 3- Diagrammatic Presentation is a chapter that presents a comprehensive view of all the important concepts and problems important for students during preparation or revision for the exam. The Class 11 Sandeep Garg Solution Diagrammatic Presentation helps students enhance and better their preparation and change their score game.

FAQs on Sandeep Garg Economics Class 11 Chapter 3 Solutions

1. Where can I find reliable step-by-step solutions for Sandeep Garg Class 11 Economics Chapter 3?

Vedantu provides comprehensive and accurate solutions for Sandeep Garg's Class 11 Economics Chapter 3, Diagrammatic Presentation. These solutions are curated by subject matter experts and follow the latest CBSE 2025-26 guidelines, ensuring each problem is solved with the correct methodology and step-by-step explanations to help students understand the concepts and score well.

2. What is the primary purpose of using diagrammatic presentation for data as explained in Chapter 3?

The primary purpose of diagrammatic presentation is to present large volumes of complex statistical data in a simple, attractive, and easily understandable form. As shown in the solutions, diagrams like bar charts and pie charts make data comparison intuitive and reveal patterns or hidden facts that might be missed in a purely tabular format.

3. How do you correctly calculate the angles for sectors in a pie chart when solving problems from Chapter 3?

To correctly solve a pie chart problem, you must convert the value of each component into a corresponding angle. The step-by-step method is as follows:

First, find the total of all the given values.
Next, calculate the degree for each component using the formula: (Value of the Component / Total Value) x 360°.
Ensure the sum of all calculated angles equals 360°.
Finally, draw a circle and use a protractor to accurately represent each sector with its calculated angle.

4. What is the main difference between solving a problem that requires a bar diagram versus one that requires a histogram?

The key difference lies in the type of data being presented.

A bar diagram is used for discrete (non-continuous) data, such as production figures for different years or the number of students in different classes. There are gaps between the bars to indicate discontinuity.
A histogram is used exclusively for continuous data or grouped frequency distributions, like marks obtained by students in a range (0-10, 10-20, etc.). In a histogram, there are no gaps between the bars, signifying the continuous nature of the data.

Choosing the wrong one is a common error, and the solutions clearly demonstrate the correct application for each.

5. What is the correct method for constructing a frequency polygon from a given data set?

The correct method for constructing a frequency polygon, as per the solutions, involves these steps:

First, find the mid-points of the class intervals of the frequency distribution. The mid-point is calculated as (Lower Limit + Upper Limit) / 2.
Mark these mid-points on the X-axis and the corresponding frequencies on the Y-axis.
Plot the points representing each mid-point and its frequency.
Join these plotted points with straight lines to form the polygon.
To complete the polygon, join the first and last points to the X-axis at the mid-points of hypothetical preceding and succeeding classes with zero frequency.

6. Why is selecting the correct type of diagram (e.g., bar, pie, histogram) so crucial for getting full marks?

Selecting the correct type of diagram is crucial because each diagram is designed to represent a specific type of data and purpose. Using the wrong one shows a fundamental misunderstanding of statistical presentation. For instance, using a bar diagram for continuous data is conceptually incorrect. Examiners look for the right application of concepts, not just a visual drawing. The solutions in Sandeep Garg help you identify data characteristics (discrete, continuous, part-to-whole) to make the correct choice and secure full marks.

7. Can you use a simple bar diagram for continuous data instead of a histogram? What do the solutions say about this common mistake?

No, you cannot use a simple bar diagram for continuous data, as this is a significant conceptual error. A histogram is the appropriate tool because its adjacent bars without gaps represent the continuous nature of the data series. A bar diagram, with its separate bars, is meant for discrete variables. The provided solutions consistently use histograms for continuous frequency distributions, reinforcing the correct methodology as per the CBSE curriculum.

8. How do the solutions for Chapter 3 on Diagrammatic Presentation help in understanding its limitations?

While solving exercises, you'll notice that diagrams offer a quick visual overview but lack precision. The solutions help you understand these limitations:

Diagrams provide an approximate idea, not the exact value of the data. For precise figures, one must refer back to the original table.
They can be easily misinterpreted if not drawn to scale or properly labelled.
They are not suitable for presenting a very large number of categories or complex relationships, which can make the diagram look cluttered and confusing.

This understanding is vital for a complete grasp of the topic.