Which of these r-values represents the strongest correlation?A.–0.8B.–0.9C.–0.7D.–0.6

The r-value, also known as the correlation coefficient, measures the strength and direction of a linear relationship between two variables. It ranges from -1 to 1. A value of -1 indicates a perfect negative correlation, a value of 1 indicates a perfect positive correlation, and a value of 0 indicates no correlation.

In this case, all the given r-values are negative, indicating a negative correlation. The strength of the correlation increases as the r-value moves away from 0 and towards -1 or 1.

So, among the given options, the r-value of -0.9 (option B) represents the strongest correlation because it is closest to -1.