Showing papers on "Population proportion published in 1995"

A Statistical Representation of Results of the U.S. Geological Survey's 1995 National Assessment of Conventional Oil and Gas Resources

Abstract: The 20/80 law is a heuristic law that has evolved over the years into the following rule of thumb for many populations: 20% of the population accounts for 80% of the total value. This law states quantitatively that often a relatively small portion of a population accounts for most of the total value of the population. This principle is certainly applicable in the case of conventional oil and nonassociated-gas resources in the United States where the few largest plays have an overwhelming amount of the total resources. The general/?100/