Which of these r-values represents the weakest correlation?A.–0.35B.–0.45C.–0.55D.–0.25

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. An r-value of -1 indicates a perfect negative correlation, while an r-value of 1 indicates a perfect positive correlation. An r-value of 0 indicates no correlation.

In this case, all the given r-values are negative, indicating a negative correlation. The closer the r-value is to 0, the weaker the correlation. Therefore, the r-value that represents the weakest correlation among the given options is D. –0.25.