I an Index Is a Convenient Way of Comparing Changes

Multiple Choice

i. An index is a convenient way of comparing changes for different variables, i.e., average income and food prices.
Ii) The concept of real income is sometimes called deflated income.
Iii) Purchasing power of the dollar is determined by finding the inverse of the CPI

A) (i) , (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements, but not (iii) .
C) (i) and (iii) are correct statements but not (ii) .
D) (ii) and (iii) are correct statements but not (i) .
E) All statements are false