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NCERT Textbook - Correlation

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FAQs on NCERT Textbook - Correlation

1. What is correlation?
Ans. Correlation is a statistical measure that quantifies the strength and direction of the relationship between two variables. It indicates how closely the variables are related to each other. A correlation coefficient is used to represent the correlation, with values ranging from -1 to 1.
2. How is correlation different from causation?
Ans. Correlation should not be confused with causation. Correlation indicates a relationship between two variables, but it does not imply that one variable causes the other. Correlation simply shows that as one variable changes, the other variable also tends to change. Causation, on the other hand, suggests that one variable directly influences the other.
3. What does a positive correlation mean?
Ans. A positive correlation means that as one variable increases, the other variable also tends to increase. In other words, both variables move in the same direction. For example, there may be a positive correlation between studying hours and exam scores, indicating that as the number of hours spent studying increases, the exam scores also tend to increase.
4. How is correlation measured?
Ans. Correlation is measured using a correlation coefficient, typically denoted by the symbol "r". The correlation coefficient ranges from -1 to 1. A value of -1 indicates a perfect negative correlation, 0 indicates no correlation, and 1 indicates a perfect positive correlation. The closer the value is to -1 or 1, the stronger the correlation.
5. Can correlation be used to determine cause and effect?
Ans. No, correlation cannot be used to determine cause and effect. Correlation only indicates the presence and strength of a relationship between variables. To establish cause and effect, further research and experimentation are required. Correlation can provide valuable insights and guide further investigation, but it does not prove causation.
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Document Description: NCERT Textbook - Correlation for Commerce 2026 is part of Economics Class 11 preparation. The notes and questions for NCERT Textbook - Correlation have been prepared according to the Commerce exam syllabus. Information about NCERT Textbook - Correlation covers topics like and NCERT Textbook - Correlation Example, for Commerce 2026 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for NCERT Textbook - Correlation.
Introduction of NCERT Textbook - Correlation in English is available as part of our Economics Class 11 for Commerce & NCERT Textbook - Correlation in Hindi for Economics Class 11 course. Download more important topics related with notes, lectures and mock test series for Commerce Exam by signing up for free. Commerce: NCERT Textbook - Correlation
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NCERT Textbook of Economics Class 11 is the updated edition as per the latest syllabus of the 2026-27, PDF available for download. Access all the chapters on EduRev!
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