Which of the following coefficient of determination values (r2) indicate the regression line that fits the data best? In other words, explains the most variation.

Group of answer choices

r2=0.56

r2=0.78

r2=0.23

r2=0.00

Regressions differ from correlations in that they:

Group of answer choices

1)Are predictive models

2)They are looking for a correlation between two dichotomous variable

3) They require much larger samples

4) They use ratio data