The word "coefficient" is correct and can be used in written English.
It is a noun which means an amount or figure that expresses the relationship between two things. For example, "The coefficient of friction between the two surfaces was 0.9."
Should be point f then: the UEFA national team coefficient ranking system.
Were it not for such efforts, Italy's Uefa coefficient would probably already have slipped below that of Germany.
Across all measures of seniority, the declines are large and highly significant....The coefficient implies a 1.2% drop in scaled capital expenditures.
The chart above concentrates on income and uses a number known as the Gini coefficient.
In a hypothetical country with a coefficient of 0, everyone has exactly the same income; a nation with a coefficient of 1.0 is home to one extremely fat cat who takes everything.
That of children living in poverty has actually grown, reaching 36% last year, because as part of the benefit reforms of 2003 extra payments for families with five or more children were abolished.Israel's Gini coefficient, a measure of income inequality, has also climbed steadily to reach one of the highest levels in the developed world.
America's Gini coefficient reached a low of around 0.3 in the mid-1970s, and Sweden's hit 0.2 at about the same time.
All told, the ball needs to have a reasonably high coefficient of restitution (efficiency of absorbing energy from a kick), but not so much as to bounce around the pitch like a beachball.
The Gini coefficient, a measure of inequality (1=maximum inequality, 0=total equality), was 0.476, virtually unchanged from its level of the prior two years.
(The Gini coefficient is a commonly used measure of inequality: 0 signifies perfect equality, 100 means that one person holds all the income).
Their worries are plausible: clad in communist flannel for the past 50 years, China may find it harder to tolerate levels of inequality that would cause few problems in a country like the United States (whose Gini coefficient is about the same as Mr Zhu's figure) with a long tradition of social mobility.
