weighted aggregative index

weighted aggregative index

[¦wād·əd ‚a·grə‚gād·iv ′in‚deks]
(statistics)
A statistic for a collection of items weighted so as to reflect the relative importance of the items with regard to the overall phenomenon which the index is designed to describe; a price index is an example.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.