(a) Three spheres of equal size are composed of aluminum , silver , and nickel .List the spheres from lightest to heaviest. (b) Three cubes of equal mass are composed of gold , platinum , and lead . List the cubes from smallest to largest.[Section 1.4]

CHAPTER 2 Exercise Solutions 1 Chapter 2, Exercise Solutions, Principles of Econometrics,23e EXERCISE 2.1 (a) x y x â x () â x 2 y â y () âxy() 3 5 2 4 3 6 2 2 1 1 0 0 1...