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NCERT Class 11 Economics Chapter 6: Correlation PDF Download

Chapter 6 of Class 11 Economics, titled Correlation, talks about the relationship between two or more variables. It helps us find out whether two things move together and to what extent. For example, is there a connection between study hours and marks? Or rainfall and crop production? This chapter teaches us how to measure and

NCERT Class 11 Economics Chapter 6: Correlation

Chapter 6 of Class 11 Economics, titled Correlation, talks about the relationship between two or more variables. It helps us find out whether two things move together and to what extent. For example, is there a connection between study hours and marks? Or rainfall and crop production? This chapter teaches us how to measure and understand such relationships using simple methods like scatter diagrams and Karl Pearson’s coefficient.

I’m writing about this topic because correlation is not just another theoretical concept in economics, but a practical tool that is used everywhere. From students analysing their own performance to government agencies comparing inflation with interest rates – correlation is useful. Knowing how to measure it correctly and interpret its meaning can help students make sense of real-life situations. For exam preparation too, it is a high-scoring chapter with direct formula-based questions. With the help of a simple PDF, you can go through all key concepts and formulas quickly during revisions. That’s why I’ve created this guide.

What is Correlation in Economics?

Correlation means the degree to which two variables move together. If both go up or down together, that’s positive correlation. If one increases while the other decreases, that’s negative correlation. If there is no connection, it’s called zero correlation.

Types of Correlation

  • Positive Correlation: Both variables increase or decrease together
    Example: Height and weight
  • Negative Correlation: One increases while the other decreases
    Example: Number of hours spent watching TV and exam performance
  • No Correlation: No pattern in change
    Example: Roll number and marks

Methods of Measuring Correlation

1. Scatter Diagram

  • A graph with dots showing the relationship between two variables
  • Gives a visual idea of how close or far the points are

2. Karl Pearson’s Coefficient

  • A mathematical method
  • Value lies between -1 and +1
  • +1 means perfect positive, -1 is perfect negative, 0 means no correlation
  • Formula:
    ![r = Σ(xy)/√(Σx² × Σy²)] (The formula is fully explained in the NCERT book)

3. Spearman’s Rank Correlation

  • Used when data is ranked instead of given in numbers
  • Formula uses the difference in ranks to calculate correlation

Importance of Correlation in Real Life

  • Used in economics, business, education, and even weather studies
  • Helps in understanding relationships before making decisions
  • For example, before investing in a sector, we may check correlation between GDP growth and stock market performance
  • In schools, teachers can analyse correlation between attendance and results

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Click Here to Download NCERT Class 11 Economics Chapter 6: Correlation PDF

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NCERT Class 12 Sociology Part 2 Chapter 8: Social Movements PDF Download

Social movements have always been a powerful force for change in society, and NCERT Class 12 Sociology Part 2 Chapter 8 focuses on understanding their forms, causes, and impact. The chapter explains how movements arise, the role of leadership, and how they influence both policies and public opinion. It also discusses the differences between social

NCERT Class 12 Sociology Part 2 Chapter 8: Social Movements

Social movements have always been a powerful force for change in society, and NCERT Class 12 Sociology Part 2 Chapter 8 focuses on understanding their forms, causes, and impact. The chapter explains how movements arise, the role of leadership, and how they influence both policies and public opinion. It also discusses the differences between social movements and other collective actions like protests or campaigns.

I am writing about this topic because students often find it difficult to connect textbook theory with real-life events. This chapter is important as it gives clarity on why social movements occur, how they are sustained, and how they shape society in the long run. Understanding this is not only essential for exam preparation but also for developing awareness as responsible citizens. For instance, movements like the Chipko Movement, Civil Rights Movement, or farmers’ protests are rooted in the same principles discussed in this chapter. By studying this topic, students can relate classroom learning to the real world and also develop critical thinking on social change.

Overview of Social Movements in Sociology

In sociology, social movements are defined as organised efforts by a large group of people to bring about or resist change in society. The chapter categorises movements into different types:

  • Reformist movements – Aim to change specific laws or policies without altering the entire system.
  • Revolutionary movements – Seek to completely change the political, social, or economic order.
  • Reactionary movements – Work towards resisting or reversing changes in society.
  • Redemptive movements – Focus on changing individuals’ lives rather than structural changes.

The NCERT text also explains that social movements have four main stages – emergence, coalescence, bureaucratisation, and decline. Examples like the Dalit movement, women’s rights movements, and environmental movements help students understand these concepts better.

Key Features Discussed in the Chapter

  • Movements can be short-term or long-term depending on their goals and public support.
  • Leadership and organisation play a big role in sustaining the movement.
  • Media often acts as a catalyst by spreading awareness and gathering public opinion.
  • Social movements are different from riots or spontaneous protests because they have a clear objective and planned strategies.

Why This Chapter is Relevant for Students

Understanding social movements helps students not only in sociology but also in subjects like political science, history, and current affairs. It strengthens analytical skills and helps in competitive exams like UPSC, where social change is a key theme.

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Students who want to read the full chapter can download the official NCERT Class 12 Sociology Part 2 Chapter 8: Social Movements PDF from this website:

NCERT Class 12 Sociology Part 2 Chapter 8: Social Movements

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