11. Correlation

Correlation Coefficient

객관식
Which of the following best describes the possible range of values for the correlation coefficient $r$ ?
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객관식
Which of the following $r$ -values represents the most moderate correlation?
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객관식
Which of the following $r$ -values represents the weakest correlation?
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객관식
Which of the following situations best describes the concept of causation rather than just correlation?
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객관식
In the context of the correlation coefficient, what does it mean if the correlation between two variables is negative (i.e., $r < 0$ )?
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객관식
Which of the following $r$ -values represents the most moderate correlation?
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객관식
Which of the following is a property of the linear correlation coefficient $r$ ?
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객관식
If the correlation coefficient between $x$ and $y$ is equal to $- 1.0$ , which of the following statements is true?
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객관식
Which of the following $r$ -values represents the strongest negative correlation?
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객관식
Which of the following $r$ -values represents the weakest correlation between two variables?
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객관식
In statistics, which value represents the strongest possible linear correlation coefficient?
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객관식
Which of the following correlation coefficients represents the strongest relationship?
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객관식
Which of the following statements about the correlation coefficient is true?
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객관식
Given a scatterplot showing a strong negative linear relationship between two variables, which is most likely the correlation coefficient for the set of data shown?
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객관식
Which of the following is not a possible value for the correlation coefficient $r$ ?
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