For an Index Number of an Average Quantity or Price

question 57

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.

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Definitions:

System of Linear Equations

A group of one or more linear equations that share a common set of variables.

Row-echelon Form

A form of a matrix where all nonzero rows are above any rows of all zeroes, and each leading entry of a row is to the right of the leading entry of the previous row.

Matrix

A rectangular array of numbers, symbols, or expressions, arranged in rows and columns, used in linear algebra.

Third Number

In sequences, the third number is the term that comes immediately after the second and is preceded by the fourth number, if available.