試題詳解

8.If the slope of the least-square regression line to predict fluid intelligence from years of education is 0.60, what does this line tell us?
(A). The correlation between years of education and fluid intelligence is .60
(B). On the average, fluid intelligence increases 0.6 for each additional year of education of a volunteer
(C). A volunteer who has no education still has a fluid intelligence scor ore of 0.60
(D). The eflect of years of education on fluid intelligence is unlikely to be significant