6.3.5.2 - Case 2: Ranks Not Given
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Practice Questions
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What is correlation?
💡 Hint: Think about how two things might affect each other.
What is positive correlation?
💡 Hint: Consider studies related to health and lifestyle.
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Interactive Quizzes
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What does a correlation of +1 indicate?
💡 Hint: Remember the implication of high correlation values.
True or False: Correlation implies causation.
💡 Hint: Refer to earlier discussions about correlation vs. causation.
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Challenge Problems
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Given the following data, calculate the Pearson correlation coefficient: (X: [1, 2, 3, 4, 5], Y: [5, 4, 6, 5, 7]).
💡 Hint: Use the correlation formula involving means and standard deviations.
Analyze the correlation between hours studied and exam scores based on your classmates’ inputs. Report the correlation coefficient and its implications.
💡 Hint: Look for patterns in your data.
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