Mathematics · Correlation and Regression
The correlation between Test X and Test Y is 0.42. The correlation between Test X and Test Z is 0.84. Which of the following statements is correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Test X and Test Z measure exactly the same underlying ability.
- 2A student receiving a higher score on Test X will always receive a higher score on Test Z than on Test Y.
- 3The relationship between Test X and Test Z is stronger than the relationship between Test X and Test Y.✓
- 4The relationship between Test X and Test Z is twice as strong as the relationship between Test X and Test Y.
Correct answer
The relationship between Test X and Test Z is stronger than the relationship between Test X and Test Y.
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