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

Yadiel Huynh

3 October, 12:27

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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Yandel Mercado · 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