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Correlation

ICSE · Class 11 · Economics

Quick revision notes for Correlation — ICSE Class 11 Economics. Key concepts, formulas, and definitions for last-minute revision.

64 questions40 flashcards5 concepts

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Key Topics to Revise

1

1. Meaning, Nature, and Importance of Correlation

  • Correlation is the study of how variables move together.
  • When a change in one variable is accompanied by a change in another, the variables are correlated.
  • Correlation analysis of two variables is called bivariate analysis.
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2. Types and Degrees of Correlation

  • Correlation is classified in three ways: by direction, by number of variables, and by linearity.
  • By direction, correlation may be positive or negative.
  • Positive correlation is also called direct correlation.
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3. Methods of Measuring Correlation

  • The main methods are scatter diagram, Karl Pearson's coefficient of correlation, and rank correlation.
  • Scatter diagram is a non-mathematical method.
  • Karl Pearson's coefficient of correlation is a mathematical method.
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4. Karl Pearson's Coefficient of Correlation

  • Karl Pearson gave the Product Moment Correlation method in 1890.
  • The coefficient is denoted by r.
  • Its value always lies between -1 and +1.

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Full Notes

Key Concepts

Correlation exists when two variables varyAssociation is a general relationship betweenCorrelation analysis of two variablesCorrelation may be positive or negativeSimple correlation studies two variables

Frequently Asked Questions

What are the important topics in Correlation for ICSE Class 11 Economics?
Correlation covers several key topics that are frequently asked in ICSE Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Correlation — ICSE Class 11 Economics?
Understand the core concepts first, then work through the 64 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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