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The information ratio measures and compares the active return of an investment (e.g., a security or portfolio) compared to a benchmark index relative...

In decision tree learning, information gain ratio is a ratio of information gain to the intrinsic information. It was proposed by Ross Quinlan, to reduce...

The information–action ratio is a concept coined by cultural critic Neil Postman in his work Amusing Ourselves to Death. In short, Postman meant to indicate...

In finance, the Sharpe ratio (also known as the Sharpe index, the Sharpe measure, and the reward-to-variability ratio) measures the performance of an investment...

In mathematics, a ratio (/ˈreɪʃ(i)oʊ/) shows how many times one number contains another. For example, if there are eight oranges and six lemons in a bowl...

Sex ratio is used to describe the ratio of females to males in a population. In India, the sex ratio has been estimated via a number of methods and data...

In mathematics, two quantities are in the golden ratio if their ratio is the same as the ratio of their sum to the larger of the two quantities. Expressed...

odds ratio (OR) is a statistic that quantifies the strength of the association between two events, A and B. The odds ratio is defined as the ratio of the...

The price-to-book ratio, or P/B ratio, (also PBR) is a financial ratio used to compare a company's current market value to its book value (where book value...

A financial ratio or accounting ratio states the relative magnitude of two selected numerical values taken from an enterprise's financial statements....

Signal-to-noise ratio (SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background...

A ratio distribution (also known as a quotient distribution) is a probability distribution constructed as the distribution of the ratio of random variables...

human sex ratio is the ratio of males to females in a population in the context of anthropology and demography. In humans, the natural sex ratio at birth...

The waist–hip ratio or waist-to-hip ratio (WHR) is the dimensionless ratio of the circumference of the waist to that of the hips. This is calculated as...

In statistics, the likelihood-ratio test is a hypothesis test that involves comparing the goodness of fit of two competing statistical models, typically...

alternative for the widely used Sharpe ratio and is based on information the Sharpe ratio discards. Omega is calculated by creating a partition in the...

aspect ratio of an image is the ratio of its width to its height. It is expressed as two numbers separated by a colon, width:height. Common aspect ratios are...

In survival analysis, the hazard ratio (HR) is the ratio of the hazard rates corresponding to the conditions characterised by two distinct levels of a...

The expense ratio of a stock or asset fund is the total percentage of fund assets used for administrative, management, advertising (12b-1), and all other...

The 'PEG ratio' (price/earnings to growth ratio) is a valuation metric for determining the relative trade-off between the price of a stock, the earnings...