medium · MCAT cars
A scientist is investigating the relationship between two variables and calculates a correlation coefficient r = -0.85.
What can the scientist conclude about the relationship between these variables?
- There is a strong inverse linear relationship between the variables.
- 85% of the variation in one variable is explained by the other.
- The relationship between the variables is weak and likely due to chance.
- An increase in one variable causes a decrease in the other.
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