Question:

A researcher finds a correlation of 0.40 between personal income and the number ofyears of college completed. Based upon this finding he can conclude that

A.

a person who attended four years of college will have an annual income of rs. 40,000

B.

more years of education causes higher income

C.

personal income is a positively skewed variable

D.

more years of education are associated with higher income

Answer» d. more years of education are associated with higher income