Two variables are correlated with r = 0.79. Which description best describes the strength and direction of the association between the variables? A. weak positive B. strong positive C. weak negative D. strong negative

Question

Mathematics

Andrew Lang

14 June, 03:39

Two variables are correlated with r = 0.79. Which description best describes the strength and direction of the association between the variables? A. weak positive B. strong positive C. weak negative D. strong negative

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Answers (1)

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Maria Ward · Answer 1

The value of the correlation coefficient ranges from - 1 to 1. The positive values indicate a positive correlation and the negative value indicates a negative correction.

The given correlation r = 0.79 is having a positive value. This means the two variables are positively correlated. Values closer to 1 indicate a strong correlation and the values closer to 0 indicate a weak correlation. A rule of thumb is, if the absolute value of correlation coefficient is greater than 0.65, it will be considered a strong correlation.

Since the value r = 0.79 is greater than 0.65. The correlation is strong.

Therefore, the correlation between the two variables is strong and positive.

So, the correct answer is option B