Weight

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Weight

Copyright © 2012, Campbell R. Harvey. All Rights Reserved.

Weighted

Describing an average in which some values count for more than others. For example, if an index consisting of 10 stocks is weighted for price, this means that the average price of the stocks will move more when the stocks with higher price move. Most indices use weighted averages so "smaller" values do not affect the index inordinately. This helps correct for the fact that averages tend to be affected by extreme values. One of the most common ways of weighting an average is to weight for market capitalization.
Farlex Financial Dictionary. © 2012 Farlex, Inc. All Rights Reserved
References in periodicals archive ?
(Less than 1.66 pounds is considered extremely low birth weight; less than 3.31 pounds is labeled very low birth weight.)
Out of these LBW neonates, 11 (10.2%) were classified as very low birth weight and 8 (0.2%) as extremely low birthweight.
Approximately 63,000 infants are born in the United States with a very low birth weight (one to five percent of all live births).
The study found that adults with very low birth weight scored lower or performed slower in general intelligence, executive functioning and attention and visual memory compared to the adults born at a low to normal weight.
The prevalence of low birth weight and very low birth weight did not change (12% and 2-3%, respectively), but the second birth was more likely than the first to be preterm (15% vs.
There is some evidence of reduced linear growth and increased risk of rickets in very low birth weight infants fed unsupplemented human milk (23,24).
The authors said that very low birth weight clearly affected children's later intellectual and academic performance.
In addition, it has documented a significantly reduced incidence of low birth weight and very low birth weight deliveries compared to the national average (5.1 percent and 0.71 percent compared to 7.08 percent and 1.3 percent respectively).
A group of 20 very low birth weight babies were fed either breast milk or commercial formula.
There were 45.5% low birth weight with 4.28% very low birth weight babies among cases.
For the study, 103 adults born with a very low birth weight (less than 3.3 pounds) and 105 adults who weighed more than 3.3 pounds at the time of birth were given tests that measured their thinking skills, including vocabulary, ability to understand words, memory and IQ.

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