observed ratio

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• Ratio Studiorum — • The educational system of the Jesuits Catholic Encyclopedia. Kevin Knight. 2006. Ratio Studiorum     Ratio Studiorum     † …   Catholic encyclopedia

• ratio — 01. The [ratio] of first year and second year players on the team is about 2 to 1. 02. The highest [ratio] of overweight people in the world is in Russia, at 25.4 percent, followed by Mexico at 25.1 percent. 03. The [ratio] of women to men in our …   Grammatical examples in English

• ratio — An expression of the relation of one quantity to another ( e.g., of a proportion or rate). SEE ALSO: index (2), quotient. [L. r. (ration ) a reckoning, reason, fr. reor, pp. ratus, to reckon, compute] absolute terminal innervation r. the number… …   Medical dictionary

• ratio of safety — A margin, to be observed by a trustee in investing trust funds, between the value of the security and the amount of the trust investment. 54 Am J1st Trusts § 426 …   Ballentine's law dictionary

• Likelihood-ratio test — The likelihood ratio, often denoted by Lambda (the capital Greek letter lambda), is the ratio of the maximum probability of a result under two different hypotheses. A likelihood ratio test is a statistical test for making a decision between two… …   Wikipedia

• Human sex ratio — In anthropology and demography, the human sex ratio is the sex ratio for Homo sapiens (i.e. the ratio of males to females in a population). Like most sexual species, the sex ratio is approximately 1:1. In humans the secondary sex ratio (i.e. at… …   Wikipedia

• Sharpe ratio — The Sharpe ratio or Sharpe index or Sharpe measure or reward to variability ratio is a measure of the excess return (or risk premium) per unit of deviation in an investment asset or a trading strategy, typically referred to as risk (and is a… …   Wikipedia

• Golden ratio — For the Ace of Base album, see The Golden Ratio (album). Not to be confused with Golden number. The golden section is a line segment divided according to the golden ratio: The total length a + b is to the length of the longer segment a as the… …   Wikipedia

• Odds ratio — The odds ratio [1][2][3] is a measure of effect size, describing the strength of association or non independence between two binary data values. It is used as a descriptive statistic, and plays an important role in logistic regression. Unlike… …   Wikipedia

• Monotone likelihood ratio — A monotonic likelihood ratio in distributions f(x) and g(x) The ratio of the density functions above is increasing in the parameter x, so f(x)/g(x) satisfies the monotone likelihood ratio property. In statistics, the monoto …   Wikipedia

• Standardized mortality ratio — The standardized mortality ratio or SMR in epidemiology is the ratio of observed deaths to expected deaths, where expected deaths are calculated for a typical area with the same age and gender mix by looking at the death rates for different ages… …   Wikipedia