Question
The figure shows a scatterplot of the height of the left seat of a seesaw and the height of the right seat of the same seesaw. Estimate the numerical value of the correlation, and explain the reason for your estimate.
Step 1
Correlation is a statistical measure that describes the association between random variables. In simple terms, it tells us how much one variable changes when the other variable changes. The correlation coefficient ranges from -1 to 1. A value of 1 implies a Show more…
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The figure shows a scatterplot of the height of the left seat of a seesaw and the height of the right seat of the same seesaw. Estimate the numerical value of the correlation and explain the reason for your estimate. Choose the correct answer below: A. The correlation is r = 1 because there is a perfect linear association. B. The correlation is r = 0 because there is no linear association. C. The correlation is 0.9 < r < 0.5 because there is a moderate negative linear trend. D. The correlation is r = -1 because there is a perfect negative linear association.
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