[ays_quiz id=”98″]

Class 6 → Mathematics → Chapter 4: Data Handling and Presentation

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I. Chapter Summary:

The chapter Data Handling and Presentation introduces students to collecting, organizing, and representing data in meaningful ways. It explains how data can be recorded using tables and represented visually through pictographs and bar graphs. Students learn to interpret data, compare quantities, and make simple conclusions. This chapter helps develop analytical thinking and prepares students to handle real-life data effectively.

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II. Key Concepts Covered:

1. Data

Information collected in the form of numbers, facts, or observations.

2. Collection of Data

Data can be collected through surveys, observations, or experiments.

3. Organisation of Data

Data is arranged in tables for easy understanding.

4. Pictographs

Data represented using pictures or symbols.

5. Bar Graphs

Data represented using rectangular bars.

6. Interpretation of Data

Understanding and drawing conclusions from data.

7. Scale in Graphs

Represents how much each symbol or bar stands for.

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III. Important Questions:

(A) MCQs (1 Mark):

1. Data means:
   (a) Pictures
   (b) Information ✅
   (c) Numbers only
   (d) Graphs
2. Which graph uses pictures?
   (a) Bar graph
   (b) Pictograph ✅
   (c) Line graph
   (d) Pie chart
3. Bar graphs use:
   (a) Circles
   (b) Lines
   (c) Rectangular bars ✅
   (d) Dots
4. Data can be collected using:
   (a) Guessing
   (b) Survey ✅
   (c) Drawing
   (d) Coloring

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IV. Short Answer Questions (2/3 Marks):

1. What is data?
2. Define pictograph.
3. What is a bar graph?
4. Why is data organised in tables?

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V. Long Answer Questions (5 Marks):

1. Explain collection and organisation of data.
2. Describe pictographs with examples.
3. Explain bar graphs and their uses.
4. Interpret given data and draw conclusions.

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VI. HOTS Questions:

1. Why is graphical representation of data important?
2. How can incorrect data representation affect conclusions?

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VII. Key Formulas/Concepts:

Basic Data Representation Concept

$text{Data} rightarrow text{Tables} rightarrow text{Graphs}$

Example:

• Number of students in classes
• Daily temperature record
• Number of fruits sold

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VIII. Deleted Portions (CBSE 2025–2026):

No portions have been deleted from this chapter as per the rationalized NCERT textbooks.

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IX. Chapter-Wise Marks Bifurcation (Estimated – CBSE 2025–2026):

Unit/Chapter	Estimated Marks	Type of Questions Typically Asked
Data Handling and Presentation	5–7 Marks	MCQs, Short Answer, Graph-based

Note: This is an estimate. Actual marks distribution may vary.

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X. Previous Year Questions (PYQs):

1 Mark:

• What is data? (2019)

2/3 Marks:

• Define pictograph. (2020)
• What is a bar graph? (2021)

5 Marks:

• Explain data representation methods. (2022)

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XI. Real-World Application Examples:

• School attendance records
• Weather reports
• Sales data in shops
• Sports scores

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XII. Student Tips & Strategies for Success:

Time Management:

• Practice drawing graphs regularly.

Exam Preparation:

• Understand how to read graphs.
• Practice interpretation questions.

Stress Management:

• Take time to understand data carefully.
• Avoid rushing while drawing graphs.

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XIII. Career Guidance & Exploration:

• Science Stream: Data Science, Statistics
• Commerce Stream: Business Analysis, Accounting
• Arts Stream: Economics, Geography

Entrance Exams (Basic Awareness):

• Olympiads
• NTSE

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XIV. Important Notes:

• Always use correct scale in graphs.
• Label graphs clearly.
• Practice regularly.
• Refer to NCERT textbook.
• Revise frequently.