Answer available
Class 11 · Mathematics · Correlation Analysis
When is Spearman's rank correlation used in preference to Karl Pearson's coefficient?
3 marksMediumShort answer
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Class 11 · Mathematics · Correlation Analysis
What is correlation? State the range of Karl Pearson's coefficient of correlation and what its extreme values mean.
2 marksEasyShort answer
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Class 11 · Mathematics · Correlation Analysis
What does a scatter diagram show, and what pattern indicates perfect positive correlation?
3 marksMediumShort answer
- Answer available
Class 11 · Mathematics · Correlation Analysis
Distinguish between positive and negative correlation, giving one example of each.
3 marksMediumShort answer
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Class 11 · Mathematics · Correlation Analysis
The ranks of six students in two subjects give Σd2 = 30. Calculate Spearman's coefficient of rank correlation.
3 marksMediumNumerical