Which correlation coefficients is the strongest r = -0.9879021 or r = 0.9870013

Answer 1

To determine which correlation coefficient is stronger, we can look at the absolute values of the coefficients, as the strength of correlation is indicated by how close the value is to 1 or -1, regardless of the sign.

• The absolute value of \( r = -0.9879021 \) is \( 0.9879021 \).
• The absolute value of \( r = 0.9870013 \) is \( 0.9870013 \).

Comparing these absolute values, \( 0.9879021 \) is greater than \( 0.9870013 \).

Therefore, \( r = -0.9879021 \) indicates a stronger correlation compared to \( r = 0.9870013 \). The negative sign indicates that the correlation is negative, but the strength of the correlation is stronger in the first case.