which r - value represents the strongest negative correlation? -0.7 -0.22 0.38 0.9
which r - value represents the strongest negative correlation? -0.7 -0.22 0.38 0.9
Answer
Explanation:
Step1: Understand correlation coefficient
The correlation coefficient $r$ ranges from - 1 to 1. Negative values indicate negative correlation. The closer $r$ is to -1, the stronger the negative correlation.
Step2: Compare given values
We have -0.7, -0.22, 0.38, 0.9. We ignore the positive values 0.38 and 0.9 as we want negative correlation. Among -0.7 and -0.22, $|-0.7| = 0.7$ and $|-0.22|=0.22$, and 0.7>0.22.
Answer:
-0.7