The table below shows hypothetical data for volumes of e-books and hardcover books sold over a 3-year period in a particular city.
TABLE 2-3
-Refer to Table 2-3.Suppose we choose Year 1 as the base year and construct a series of index numbers with which to analyze sales data.The index numbers for volumes of hardcover books sold (starting with Year 1)is
A)431; 819; 100.
B)43.1; 81.9; 100.
C)100; 81.9; 43.1.
D)100; 0.819; 0.431.
E)0.431; 0.819; 100.

Question

The table below shows hypothetical data for volumes of e-books and hardcover books sold over a 3-year period in a particular city.
  TABLE 2-3
-Refer to Table 2-3.Suppose we choose Year 1 as the base year and construct a series of index numbers with which to analyze sales data.The index numbers for volumes of hardcover books sold (starting with Year 1)is
A)431; 819; 100. 
B)43.1; 81.9; 100. 
C)100; 81.9; 43.1. 
D)100; 0.819; 0.431. 
E)0.431; 0.819; 100.

Quizplus · Accepted Answer

The index number for the base year is always 100. The subsequent years' index numbers are calculated by dividing the sales volume of each year by the base year's sales volume and then multiplying by 100.

The Table Below Shows Hypothetical Data for Volumes of E-Books