Question

question 29 of 40
which of the following r-values represents the strongest correlation?
a. -0.71
b. -0.61
c. -0.81
d. -0.51

Explanation:

The strength of a correlation is determined by the absolute value of the correlation coefficient \(r\). A larger absolute value means a stronger linear relationship, regardless of the sign (positive or negative). Calculate the absolute values of each option:

• \(| -0.71 | = 0.71\)
• \(| -0.61 | = 0.61\)
• \(| -0.81 | = 0.81\)
• \(| -0.51 | = 0.51\)

0.81 is the largest absolute value, so it represents the strongest correlation.

Answer:

C. -0.81