A Researcher Draws a Scatter Plot of Study Data

A researcher draws a scatter plot of study data. The researcher develops a multiple regression equation and determines R² as 0.5625. What does the calculated value R² represent?

A) It means the standard error, squared.
B) It means that the predictor variables accounted for 56.3% of the variance in the outcome variable.
C) It stands for the standard deviation of the data set y, squared.
D) It estimates shrinking regression.
E) It is the coefficient of determination.
F) It is the explained variance.