Which of these r-values represents the weakest correlation?

A: - 0.55

B: - 0.35

C: - 0.25

D: - 0.45

Apply the absolute value to each number. In other words, remove the negative sign to determine the positive version of that number.

-0.55 turns into 0.55

-0.35 turns into 0.35

-0.25 turns into 0.25

-0.45 turns into 0.45

The smallest result is 0.25, which is closest to 0. The closer r is to 0, the weaker the correlation.

Answer: Choice C) - 0.25