Question

which r - value represents the strongest negative correlation? 0.9 0.38 -0.22 -0.7

Explanation:

Step1: Recall correlation - r - value concept

The absolute value of the correlation coefficient \(r\) measures the strength of the correlation. For negative correlations, we consider the absolute - value of \(r\) among negative values.

Step2: Compare absolute values of negative r - values

We have two negative \(r\) - values: \(\vert - 0.22\vert=0.22\) and \(\vert - 0.7\vert = 0.7\). Since \(0.7>0.22\) and we are looking for the strongest negative correlation.

Answer:

• 0.7