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 \( r \) ranges from \(-1\) to \(1\). A value close to \(-1\) or \(1\) indicates a strong correlation. Since \( r=-0.93\) is close to \(-1\), it shows a strong correlation. The negative sign indicates a negative correlation.

Answer:

a strong negative correlation