a. 0.2 b. 0.8 c. 1.25 d. 5.0 e. 8.0
D
The tendency for the values of two variables to move in a predictable and related way is known as
A) a natural experiment. B) a normative relationshi
China's economic reforms began in
A) 1960. B) 1978. C) 1991. D) 1998.
