What represents the percentage of variation in one variable that can be predicted based on a second variable?

Question

Quizplus · Accepted Answer

The coefficient of determination, also known as R-squared, represents the percentage of variation in one variable that can be explained by a second variable. Therefore, it is the best choice for this question. The correlation coefficient (A) measures the strength and direction of a linear relationship between two variables but does not account for the percentage of variation. The coefficient of variability (C) measures the variability relative to the mean of a single variable, but does not involve a second variable. Correlation deviation (D) is not a recognized statistical term.

What Represents the Percentage of Variation in One Variable That