Question

which best describes the strength of the model with an r - value of - 0.93? a weak positive correlation a strong positive correlation a weak negative correlation a strong negative correlation

Explanation:

The correlation coefficient \( r \) measures the strength and direction of a linear relationship. The value of \( r \) ranges from \(- 1\) to \(1\). A value close to \(-1\) or \(1\) indicates a strong correlation. The sign of \( r \) indicates the direction: negative for an inverse relationship. Since \( r=-0.93\) (close to \(-1\)), it shows a strong negative correlation.

Answer:

a strong negative correlation