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In statistics, the 68–95–99.7 rule, also known as the empirical rule, and sometimes abbreviated 3sr, is a shorthand used to remember the percentage of values that lie within an interval estimate in a normal distribution: approximately 68%, 95%, and 99.7% of the values lie within one, two, and three standard deviations of the mean, respectively.
The golden ratio's negative −φ and reciprocal φ−1 are the two roots of the quadratic polynomial x2 + x − 1. The golden ratio is also an algebraic number and even an algebraic integer. It has minimal polynomial. This quadratic polynomial has two roots, and. The golden ratio is also closely related to the polynomial.
The Organisation for Economic Co-operation and Development defines the employment rate as the employment-to-population ratio. [ 1] This is a statistical ratio that measures the proportion of a country's working age population (statistics are often given for ages 15 to 64 [ 2][ 3]) that is employed. This includes people that have stopped looking ...
An irreducible fraction (or fraction in lowest terms, simplest form or reduced fraction) is a fraction in which the numerator and denominator are integers that have no other common divisors than 1 (and −1, when negative numbers are considered). [1] In other words, a fraction a b is irreducible if and only if a and b are coprime, that is ...
A study by the Agency for Healthcare Research and Quality (AHRQ) found that more than half (51 percent) of live hospital births in 2008 and 2011 were male. [ 88 ] Per U.S. federal government data released in March 2011, births fell 4% from 2007 to 2009, the largest drop in the U.S. for any two-year period since the 1970s. [ 89 ]
Life expectancy, literacy, median wage, school enrolment, and other socio-economic markers remain low while Roma compose the majority of prison and habitual offender populations despite accounting for only a fraction of a percent of Czech population.
100% or more, 75% - 100%, 50% - 75%, 25% - 50%, Less than 25%, no data Total (gross) government debt as a percent of GDP by IMF in 2024 General government debt in OECD (% of GDP) This is a list of countries by government debt. Gross government debt is government financial liabilities that are debt instruments.
In 2020, in 36 out of the 50 US states, non-Latino whites made up a greater percentage of the state's population than the US overall share of 57.8%; however, the 14 states with greater shares of non-whites include the four most populous states (California, Texas, New York, and Florida).