The correlation analysis between X and Y variables assuming the parabolic relationship revealed a nonlinear correlation coefficient of 0.98. The percentage of the total variation that remains unexplained by assuming a parabolic relationship between X and Y is
Options:
(A) 2.0
(B) 96.0
(C) 3.96
(D) 10.0
Official Answer Key:
C
Step-by-Step Solution & Explanation
Coefficient of determination = η² = 0.98² = 0.9604, i.e. 96.04% of variation is explained. Unexplained % = 100 − 96.04 = 3.96%.
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