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**Variation ratio**— The variation ratio is a simple measure of statistical dispersion in nominal distributions; it is the simplest measure of qualitative variation.It is defined as the percent of cases which are not the mode::mathbf{v} := 1 frac{f m}{N}.While a… … Wikipedia**Variation of some elastic constants (in 10^6 bars) with rock type and confining pressure**— ▪ Table Variation of some elastic constants (in 106 bars) with rock type and confining pressure at pressure = 1 bar rock type bulk modulus Young s modulus shear modulus Poisson s ratio granite 0.1 0.3 0.2 0.05 gabbro 0.3 0.9 0.6 0.1… … Universalium**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**Qualitative variation**— An index of qualitative variation (IQV) is a measure of statistical dispersion in nominal distributions. There are a variety of these, but they have been relatively little studied in the statistics literature. The simplest is the variation ratio … Wikipedia**Coefficient of variation**— In probability theory and statistics, the coefficient of variation (CV) is a normalized measure of dispersion of a probability distribution. It is also known as unitized risk or the variation coefficient. The absolute value of the CV is sometimes … Wikipedia**Isotope-ratio mass spectrometry**— Isotope ratio mass spectrometer with gas bench in foreground Acronym IRMS Classification mass spectrometry Other techniques … Wikipedia**Digit ratio**— Not to be confused with Benford s law about the frequencies of leading digits of numbers. Hand with index finger being shorter than the ring finger, resulting in a small 2D:4D ratio, pointing to a high exposure to testosterone in the uterus. The… … Wikipedia**Isotope ratio mass spectrometry**— Infobox chemical analysis name = Isotope ratio mass spectrometry caption =Isotope ratio mass spectrometer with gas bench in foreground acronym = IRMS classification =mass spectrometry analytes = manufacturers = related = Accelerator mass… … Wikipedia**P/E ratio**— The P/E ratio (price to earnings ratio) of a stock (also called its earnings multiple, or simply multiple, P/E, or PE ) is a measure of the price paid for a share relative to the annual income or profit earned by the firm per share. [cite web|url … Wikipedia**Aspect ratio (wing)**— In aerodynamics, the aspect ratio of a wing is defined as the square of the wing span divided by the wing area.:AR = {b^2 over S}where: b is the wing span, and: S is the wing area.Informally, a high aspect ratio indicates long, narrow wings,… … Wikipedia