Correlation Quiz for Class XI - Statistics for Economics
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1. What is the primary purpose of correlation analysis?
To establish cause and effect · To determine the strength and direction of a relationship · To predict future values · To summarize data
2. Which of the following values indicates a perfect positive correlation?
-1 · 0 · 1 · 0.5
3. In correlation analysis, what does a correlation coefficient of -0.8 indicate?
Strong positive relationship · Weak negative relationship · Strong negative relationship · No relationship
4. What is the range of values for the correlation coefficient?
-1 to 1 · 0 to 1 · -∞ to +∞ · 0 to 100
5. Which method is commonly used to calculate the correlation coefficient?
Least Squares Method · Pearson's Method · Regression Analysis · Standard Deviation Method
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