which r - value represents the strongest negative correlation?\n-0.7\n-0.22\n0.38\n0.9
which r - value represents the strongest negative correlation?\n-0.7\n-0.22\n0.38\n0.9
Answer
Explanation:
Step1: Understand correlation rules
The correlation coefficient $r$ ranges from - 1 to 1. A negative $r$-value indicates a 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 are looking for negative correlation. Among -0.7 and -0.22, $\vert - 0.7\vert=0.7$ and $\vert - 0.22\vert = 0.22$. Since 0.7>0.22, -0.7 is closer to -1.
Answer:
-0.7