For an Index Number of an Average Quantity or Price

Multiple Choice

For an index number of an average quantity or price, the weights used must add up to 1 for

A) neither a proportional- weights index nor an unweighted index.
B) price indexes only.
C) a proportional- weights index but not an unweighted index.
D) an unweighted index but not a proportional- weights index.
E) both a proportional- weights index and an unweighted index.